1. Mass of the sun:-
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2. Temp. at the center of the Sun:- 15 million degree C
3. The top atmosphere of the earth directly reflects back into space nearly what part of the total amount of sun’s energy coming to it?:- 30%
4. The phases of the moon are partially the result of the:- Revolution of the moon around the earth.
5. ‘Black holes’ refers to:- collapsing of object of high density.
6. The earth moves from:- west to east.
7. Venus orbits around the sun in a clockwise direction.
8. Brightest planet, morning star, evening star, hottest planet :- Venus
9. The rising of evening star indicates the:- West
10. Excluding the sun and moon, the celestial objects which appears brightest in the sky is:- Venus.
11. Nearest planet to the earth is:- Venus
12. Earth’s early greenhouse climate resulted in a climate much like that of ____ today:- Venus
13. Nearest planet to the sun is:- Mercury
14. Largest, Fastest rotating planet:- Jupiter
15. The heaviest mass revolving around the sun:- Jupiter
16. Planet having smallest diameter:- Mercury
17. Nearest star to our sun:- Proxima Centurai
18. Nearest galaxy to our milky-way:- Andromeda
19. Isobars are the lines connecting the places having same:- Pressure
20. The line joining the areas having the same rainfall is called:- Isoyet
21. Lines joining places of equal temperature are called:- Isotherms
22. Spring tides occur on new moon and full moon days because on these days:- Sun, moon and earth are in a straight line.
23. The position of earth in its orbit, when it is at its greatest distance from sun is called:- Aphelion.
24. The position of a planet when it is nearest to the sun is:- Perihelion.
25. Largest moon in our solar system:- Ganymede
26. Most abundant element in earth’s crust.:- Oxygen.
27. Earth’s crust have the abundant reserves of: Iron, Silicon and Oxygen
28. The most abundant element in the Earth’s atmosphere:- Nitrogen
29. Which metal is most abundantly found in the Earth’s crust:- Aluminium
30. Which is the most abundant greenhouse gas in Earth’s atmosphere:- water vapour
31. First to measure earth’s radius:- Eratosthenses
32. Position of earth from sun:- 3rd
33. Hailey’s comet is visible after every:- 76 years
34. name of spacecraft enabled man to step on the moon first:- Apollo XI
35. 1st astronaut to set foot on moon was:- Neil Armstrong.
36. the setting sun looks oval in shape because of:- Refraction of rays of sun passing through atmosphere
37. Shape of earth is:- Oblate spheroid
38. The earth is spheroid because of:- Centrifugal force of rotation
39. Shape of earth’s orbit around the Sun:- Ellipse
40. The greatest single mass of ice on the earth is found in:- Antarctica
41. The mass of moon in comparison to the Earth is:- 1/81
42. The gravitational pull at the lunar surface is_____ of Earth:- One-sixth
43. On planet scientists hopeful of the existence of some type of life:- Mars
44. The time taken by Uranus to revolve around the sun is approx:- 84 Years
45. Bodies usually fall from sky on the earth:- Meteoroids
46. Comets are luminous celestial bodies moving around the: Sun
47. Comets are made of: Ice and dust
48. Sun rises in the east and sets in the west due to the:- Rotation of the Earth on its axis
49. The umbra is: The inner and dark portion of the shadow.
50. Lunar eclipse occurs only on:- Full moon
51. Solar eclipse occurs on: new moon day
52. Atmospheric pressure exerted on earth is due to the:- Gravitational pull
53. Basalt rock is an example of:- Volcanic
54. Layer make radio transmission possible:- Ionosphere
55. The equatorial radius of the earth is approx:- 6371 km
56. The polar diameter of the earth is shorter than its equatorial diameter by:- 43 km
57. The approx. circumference of the earth:-40,000 km
58. The earth completes one rotation on its axis in:- 23 h 56 min 4.9 sec
59. In which part of the atmosphere commercial aircraft usually fly:- Troposphere
60. The layer of atmosphere close to the Earth’s surface is called:- Troposphere
61. Earthquakes are caused by:- Tectonism
62. Main agents of soil erosion:- Wind and Water
63. ‘Great circle’ is? Equator
64. Lines drawn parallel to the equator are called:- Latitudes
65. The Gutenberg discontinuity is between:- the outer core and the lower mantle.
66. The oceans cover approx. ___ of the earth’s surface:- 70%
67. Total water on earth is stored in oceans:- 97%
68. The distance b/w consecutive longitudes at the poles is:- Zero
69. Monsoon is caused by:- seasonal reversal of winds
70. Equinox:- Equal days and nights
71. A day is added when a man crosses the International Date Line from:- East to West
72. The International Date Line passes through:- exactly through 1800 longitude
73. The Prime Meridian passes through:- Great Britain
74. Slate, diamond and marble are ______ rocks? metamorphic
75. Wind blowing in a spiral form around a region of low atmospheric pressure is a:- Cyclone
76. On 21st June the sun is vertically overhead the:- Tropic of Cancer.
77. For a time difference of one hour the longitudinal distance is equal to:-
78. igneous rock:- Granite
79. example of sedimentary rock:- Limestone
80. Sedimentary rocks are:- Porous
81. Savannah Grasslands with tall trees are mainly found in:- Africa
82. Pampas are the vast grassy plains of:- South America
83. Temperate grasslands of Asia and Europe are called:- Steppes
84. Richter scale is used to register intensity of: Earthquackes
85. The intensity of earthquakes is measured on:- Mercalli Scale
86. Bauxite is an imp. ore of:- Aluminium
87. In the Northern Hemisphere the longest day is on:- 21st June
88. As per koppen climate classification Category B is:- Desert
89. Arctic circle is located at:- north of the equator
90. Antarctic circle is the parallel of:- Latitude
91. Latitude measures mean angular distance, expressed in degrees of a point on the Earth’s surface:- North or south of the equator
92. The Zone of the earth that is divided into rigid plates is the:- Lithosphere
93. In the concept of plate tectonics the term “plates” refers to the:- Rigid Earth above the asthenosphere.
94. Weather and climate refer to conditions:- in the air
95. characteristics of minerals:- Inorganic, Naturally occurring, specific chemical composition.
96. Father of computer:- Charles Babbage
97. Father of AI:- John Mcarthy
98. The father of genetics is:- Mendel
99. Oxygen is not combustible.
100. The source of sun energy:- Fusion
101. Coal is formed from:- Marine plants & algae
102. Which type of coal has the highest energy content:- Anthracite
103. Petroleum is formed from: Marine organisms
104. Ethanol is biofuel and is known as:- Carbon neutral
105. Leading petroleum consumer in the world:- USA
106. Leading petroleum producer in the world:- KSA
107. World’s largest proven oil reserve are in:- KSA
108. Top coal producer in the world is:- China
109. Materials which can retain their strength above C are called:- Ceramics
110. Ceramics don’t conduct: both heat and electricity.
111. Plastic is a:- synthetic polymer
112. Poly means “many” meros means “part”
113. Bakelite is a good:- Insulator
114. Natural substances made up of long molecules are:- Rubber and wool
115. Long chains of atoms are linked by:- Carbon
116. ___ is a synthetic fibre used for making woolen clothes:- Acrylic
117. Synthetic fibres are made using___ as raw materials:- Petrochemicals
118. Fibre obtained by chemical treatment of wood pulp is called:- Rayon
119. Nylon is obtained by___:- mixing coal, air and water
120. ____ is a polyester used for making bottles, utensils, films.:- PET
121. Three dimensional molecules with cross links are formed in the case of a___:-
122. thermosetting plastic
123. Pests may not be destroyed through:- vaccine
124. Pesticides designed to kill birds are called:- Avicides
125. Pest control by changing crop spacing including crop rotation, pruning and weeding are part of the method of:- Cultural control
126. The process of accumulating higher and higher amounts of a toxic material such as heavy metals within the body of any animal is called:- Bioaccumulation
127. If nitrogen is main element of fertilizers then fertilizers are classified as:- Nitrogen fertilizers
128. Increased ratio of chemical nutrients in ecosystem leads to:- Eutrophication
129. Greenhouse gas which can be emitted from storage of nitrogen-based fertilizers is:- Nitrous oxide
130. When is a P-N junction formed:- The point at which two opposite doped materials come together
131. IPM:- Integrated pest management
132. The densest of all the atmospheric layers is:- Troposphere
133. Particulate pollutants are:- Dust, Soot, Smoke
134. Primary pollutants:- , , CO
135. Secondary pollutants:-Smog, , PAN (Peroxyl Acetyl Nitrate)
136. Carbon monoxide is a pollutant because:- reacts with haemoglobin
137. The supersonic jets cause pollution by the thinning of:- Layer
138. which material accounts for the greatest %age of the weight of solid waste:- Paper.
139. Oxidation of sulfur in the fossil fuels mainly produces:- ,
140. Carbon dioxide content in atmosphere is:- 0.03%
141. The polluting strength of sewage is usually characterized by its:- BOD
142. Smog:- Smoke+fog
143. The major photochemical oxidant is:- Ozone
144. Air pollution control device suitable for removing the finest dust from the air:- Fabric filter or baghouse.
145. Fluoride pollution mainly affects:- Teeth.
146. Disease caused by eating fish inhabiting mercury contaminated water is:- Mina-Mata disease
147. Sound becomes hazardous noise pollution at______ decibels:- Above 80.
148. Major source of thermal pollution in water bodies:- Thermal power plant.
149. The highest heating valve is of:- Industrial waste
150. High level radioactive waste can be managed in which of the following ways:- Deep well injection.
151. Biodegradable organic chemical/substance:- Oils
152. Acid rain is formed due to contribution of:- carbon dioxide and sulphur dioxide.
153. Prime health risk associated with UV radiation:- skin cancer
154. The most serious environmental effect posed by hazardous wastes is:-Contamination of groundwater.
155. The three primary soil macronutrients are:-Potassium, phosphorus, and nitrogen
156. What is the correct sequence of the different layers of atmosphere as one proceeds upwards from the earth’s surface:- Troposphere, Stratosphere, Ionosphere, Exosphere
157. The altitude of troposphere at equator:- 0-12 km
158. The altitude of Mesosphere at equator:- 0-80
159. Boundary b/w the troposphere and stratosphere is called:- Tropopause.
160. Climate variations on the scale of hundreds of years may be caused by____:-Changes in the ocean currents
161. Carbon dioxide has been locked up over geological time as_____:- Limestone and fossils
162. ___ refers to the oceans, seas, rivers, fresh water and underground water:-Hydrosphere.
163. Gases included in the category ‘greenhouse gases’:-Methane, Nitrous Oxide, Carbon Dioxide
164. which type of energy transfer occurs b/w two substances in direct physical contact:- Conduction
165. which two gases make up 99% of Earth’s atmosphere:- Nitrogen and Oxygen
166. Which greenhouse gas is produced only through human activity and no natural sources:- Halocarbons
167. which type of energy transfer occurs as energy travels from the Sun to Earth:- Radiation
168. Which is the largest single indicator of climate change:- Global Warming
169. The greenhouse effect is caused by: Greenhouse gases in the lower atmosphere absorbing radiation from the Earth’s surface, and preventing much of it escaping into space.
170. ___ has the highest per capita carbon dioxide emissions:- United States
171. Activity contributes the most to carbon emissions globally:- Transport
172. Kyoto Protocol entered into force:- 2005
173. Countries in which region have achieved maximum emission reductions compared to the 1990 levels:- Europe
174. Which gas was added to the list of GHG under the protocol in the second commitment period:- Nitrogen Trifluoride ( )
175. The Montreal Protocol (1987) was established to deal with the depletion of:-Ozone Layer
176. Which key player pulled out of the Kyoto Protocol in 2011, thereby undermining its legitimacy:- Canada
177. In its 2013 report, the IPCC projected the average increase in Global temperature about:- 2.70F (1.50C)
178. Is ozone good or bad for humans:- both good and bad
179. Montreal protocol goal is to phase out:- Ozone depleting substances
180. The first geostationary satellite launched in 1965 was called:- EARLY BIRD (Intelsat-I)
181. It is ‘a set of tools for collecting, analyzing, storing, retrieving at will, transforming and displaying spatial data from the real world for a particular set of purposes’ is a well used definition of a:- GIS
182. Geographical Information Science can be defined as:- The science behind GIS.
183. A geosynchronous satellite:- has the same revolution as that of Earth, Has a circular orbit, Rotates in the equatorial plane.
184. A geostationary satellite is one which:- Hangs motionless in space about 36,000 km about Earth, Travels around the Earth in 24 hours, Remains stationary above the earth.
185. The escape velocity of the earth is approx.:- 11.2 km/s
186. A satellite remains in orbit because the centrifugal force caused by its revolution around the earth is counterbalanced by Earth’s ___:- Gravitational pull
187. A typical output from the GPS receiver:- Position, Speed, Time
188. The operational satellites of Navstar GPS are revolving around Earth in ___ orbital planes:- 6
189. How many total satellites are currently being used in the US NAVSTAR GPS:- 32
190. Orbiting Satellite system in Russia which means “lightning” or “news flash”, used for television broadcasting. It uses a highly inclined elliptical orbit with apogee at about 40,000 km and perigee at about 1,000 km is called:- Molniya system
191. What is the name of Russian equivalent of GPS:- GLONASS
192. ___ means the farthest distance from earth a satellite orbit reaches while ____ is the minimum distance:- Apogee and perigee
193. Low Earth Orbit (LEO) satellites has rotation period of: 90 to 120 min
194. Low Earth Orbit (LEO) satellites are close to:- Earth
195. Low Earth Orbit (LEO) are below an altitude of:- 2,000 kms
196. GPS stands for (Global Positioning System)
197. A GPS device can pinpoint your location within:- 10 metres
198. GPS technology uses:- A system of satellites
199. Who built and operates the Global Positioning System:- US Air Force
200. A map marker is called a:- Cartographer
201. Remote sensing device is:- Deployed from a plane or satellite
202. Sensing that uses heat or temperature to detect is called:- Infrared Sensing
203. Infrared Sensing is used to help map:- Animals and plants
204. Microwave sensing uses:- Long wavelengths
205. Which two sensing methods bounce waves of an object and back to detect things:- Radar and Sonar
206. Sound waves are used in what type of sensing:- Sonar
207. Radio wave is very beneficial because it can penetrate thick:- Clouds and moisture
208. Which of the following is true about the frequency and velocity of electromagnetic waves:- As frequency increases, wavelength decreases.{ }
209. Compared with light waves, radio waves:- Have longer wavelengths
210. Infrared waves, gamma rays, Radio waves, Optical light, X-rays:- electromagnetic waves
211. Electromagnetic waves are:- Transverse
212. Sound waves in air are:- Longitudinal
213. Electromagnetic waves in order from longest to shortest wavelength:- Radio waves, infrared, Visible light, X-rays
214. A radar which detects the presence of an enemy aircraft uses:- Radio waves
215. Which of the following have the shortest wavelength:- X-rays
216. The frequency of radio waves lies in the range from:- 3 kHz to 300 GHz
217. Atmospheric pressure in the centre of a tropical cyclone is:- Very low because of rising warm air
218. A tropical storm becomes a hurricane and forms an “eye” when wind speeds exceed________miles per hour:- 74
219. factors used to rate the intensity of a hurricane:- Barometric pressure, wind speed, storm surge
220. In most hurricanes extensive death and destruction are caused mainly by:- Storm surg, Inland flooding
221. Which ocean does not commonly experience tropical cyclones:- South Atlantic
222. Common ocean waves are primarily caused by:- Wind energy transferred to water
223. The process whereby wood degrades thermally, resulting in production of flammable hydrocarbons, is referred to as:- Pyrolysis
224. The chief role of drought in wildfires is:- Drying out the fuel source
225. A drought is defined as:- A lack of water/rain
226. The largest wave during tsunami event is:- Unpredictable, it could be any of them
227. The destructive powers of tsunami result mainly from their:- Momentum and long wavelength
228. In the open ocean, tsunami can travel ____ miles per hour with wave height upto ____feet.:- 500;100
229. Which event produces the biggest tsunami:- Earthquake
230. Over 90% of volcanic activity is associated with:- Plate-tectonic boundaries
231. The production of magma is favoured by an increase in ______ and ______ and a decrease in _____:- Pressure; heat; water content
232. Weather and climate are driven by what source of energy:- Solar radiation
233. Weather is a day-to-day phenomenon, climate is a long-term average
234. Warm air in the tropics rises because:- It is less dense
235. Cold air sinks because:- It is more dense
236. Air masses always move horizontally from:- High pressure to low pressure areas.
237. The Fujita scale quantifies tornadoes, based on:- The extent of damages caused by wind
238. A flash flood is a flood that:- occurs suddenly and unexpectedly and for a short duration
239. The level of flood is measured by:- A river gauging station
240. Volcanoes are generally found where ____ pull apart or are coming together:- Tectonic plates
241. Which ridge has examples of volcanoes caused by “divergent tectonic plates” pulling apart:- Mid Atlantic Ridge
242. Which one has examples of volcanoes caused by ‘convergent tectonic plate’, coming together:- Pacific Ring of fire
243. Volcanoes can also be caused by____ so called ‘hot spots’:- Mantle plumes
244. A place where two plates usually an oceanic plate and a continental plate collides is called:- Subduction zone
245. Volcanic erupted material when inside the hill/earth/mountain it is called ____ and after it coming out it is called ____. :- Magma; lava
246. The volcanoes formed by the alternating layers of lava and rock fragments are called:- Composite volcanoes
247. The bond formed by transfer of electrons from one atom to another is:- Ionic
248. Mass of an electron:-
249. The nuclei of most of the atoms contain nearly____% of the mass of the atoms:- 99.9
250. Atomic number of an atom is determined by number of:- Proton
251. Mass number is equal to the:- number of protons+number of neutrons
252. Isotopes of an element have the same number of:- Protons
253. Electron was discovered by:- J.J. Thomson
254. Proton by:-Goldstein
255. Neutron by:- Chadwick
256. Who suggested that most of the mass of atom is located in nucleus:- Rutherford
257. The term nucleon is used to refer to:- Either a neutron or a proton
258. Atoms are composed of:- Electrons and Nuclei
259. An atom of an element with mass number 23 and atomic number 11 will have:- 11 protons, 12 neutrons and 11 electrons
260. Dalton’s atomic theory states that the smallest particle which can exist independently is:- An atom
261. The neutral atom’s two isotopes differ in the number of:- Neutrons
262. The fixed circular paths around the nucleus are called:- Orbits
263. The driving force for making a bond is to:- Attain electronic configuration of noble gases
264. Coagulation of blood:- Vitamin K
265. Vitamin E in animals:- Antioxidant
266. Richest source of Vitamin A:- Liver
267. Vitamin C:- Can’t be stored in the liver.
268. Vitamin B:- Water soluble
269. Which of the following vitamins is produced in the sun’s rays:- Vitamin D
270. Lock jaw, i.e. difficulty in opening the mouth is a symptom of:- Tetanus
271. Virus causes:- Measles
272. Acquired Immuno-Deficiency Syndrome (AIDS) is caused by:- Virus
273. Mumps is a disease caused by:- Virus
274. Smallpox is caused by:- virus
275. Rickets is a disease of the:- Bones
276. Ringworm:- Fungal disease
277. Bronchitis is a disease of which of the following organs:- Respiratory tract
278. Deficiency of iron in human diet causes:- Anaemia
279. A balance diet contains:- All food nutrients necessary for growth and maintenance
280. Vitamin C is known as:- Ascorbic Acid
281. The number of Amino acids that constitute all proteins is about:- 20
282. Albumin is:- Egg protein
283. Yeast is used in making bread because it produces:- CO2
284. Enzymes are formed of:- Proteins
285. Man can’t survive without taking minimum amount of: Carbohydrates
286. Pasteurized milk is:- Specially treated milk in order to kill bacteria
287. Leukaemia is a disease of:- Blood cells
288. Deficiency of vitamin A causes:- Night blindness
289. Deficiency of vitamin C causes:- Scurvy
290. Deficiency of vitamin D causes:- Osteomalacia
291. Deficiency of Folic Acid causes:- Anaemia
292. Deficiency of iron in human diet causes:- Anaemia
293. Trachoma is a disease of the:- Eyes
294. Autopsy is connected with:- Post-mortem
295. Cholera is caused by:- Vibrio cholera
296. A water-borne disease:- cholera
297. Heart attack is caused by:- cholesterol
298. Malaria is a disease which affects the:- Spleen
299. In human beings infection of plasmodium causes:- Malaria
300. Which can cause cancer as well as cure it, depending upon its intensity and use:- Ionized radiation
301. The antibiotic penicillin is obtained from:- Fungus
302. Antibodies are:- Protein
303. The disease in which bronchial tubes become narrow due to spasms of bronchial muscles is called:- Asthma
304. ___ is not a vaccine-preventable disease:- Asthma
305. Vaccines are available for all except:- Hepatitis C
306. Which disease mainly affects children under 5 and remains endemic in only two countries:- Polio
307. An attenuated vaccine is composed of:- Living, weakened micro-organisms
308. Each gram of fat metabolized by the body releases about _____ calories:- 9
309. Which carbohydrates provides fibre, or “roughage” in humans?:- Cellulose
310. The brain relies almost entirely on ____ for energy production.:- Glucose
311. For long-term storage, glucose is converted into ____, while for short-term storage, glucose is converted into:- Fat, glycogen
312. Glycogen is mainly stored in:- Liver and muscles
313. All other monosaccharides absorbed into the blood are converted into____ in the liver:- Glucose
314. Skeletal muscle cells derive most of their energy from:- Glucose
315. Good Cholesterol is:- HDL
316. The two vitamins necessary for nucleic acid synthesis are folate and :- Vitamin B12 (cobalamin)
317. The energy currency of the cell is:- ATP
318. About 99% of the body’s energy storage is in the form of:- Lipids
319. The gain or loss of heat as infrared energy b/w two objects that are not in physical contact with each other is called:- Radiation
320. The rich source of iron is:- Green vegetables
321. Common antioxidant substances:- Beta-carotene, Lutein, Lycopene
322. Common everyday foods that are rich in antioxidants:- Fruits Berries, Black Tea, Fruits and veggies
323. Ancient methods of food preservation include:- Drying, smoking, fermenting
324. Biological method of food preservation is:- Fermentation
325. Substances used to preserve foods by lowering the pH are:- Vinegar and citric acid
326. An essential amino acid:- can’t be synthesized by the body to meet the body’s needs.
327. Eukaryotic cell:- cell with a nucleus
328. organelle stores waste in cells:- Vacuole
329. Bacteria play a vital role in Earth’s ecosystems by:- Decomposing dead organisms
330. Which of the following is an asexual form of reproduction in bacteria:- Binary Fission
331. It has a living, flexible and thin structure. It possesses fine pores, making it semi-permeable:- Cell membrane
332. It has a double-walled structure. its inner wall is produced into folds known as cristae. It is generally sausage shaped:- Mitochondrion
333. Mitochondria is also called:- Power house of the cell
334. It is a green-colored plastid. It contains a pigment called chlorophyll:- Chloroplast
335. It has a non-living rigid structure. It is freely permeable and is chiefly composed of cellulose:- Cell Wall
336. The smallest unit of classification of plants and animals is:- Species
337. Domain-Kingdom-Phylum-Class-Order-Family-Genus-Species
338. The age of a tree can be determined by:- Counting the number of annual rings in the trunk
339. A sequence of nucleotides in DNA that provides a set of instructions for making a functional protein is called a:- Gene
340. Transcription takes place in the _____ of the cell:- Nucleus
341. mRNA is copied from:- DNA
342. By the process of mitosis in a human cell, ____ daughter cells are produced, each of which has _____ chromosomes:- 2,46
343. In a normal human cell, there is (are)____ pair(s) of autosomal chromosomes, and ___ pair(s) of sex chromosomes:- 22, 1
344. Process associated with meiosis, but not mitosis:- Crossing over
345. The process of meiosis:- Results in the production of sperm cells or oocytes
346. The transmission of characters from one generation to next:- Heredity
347. The imp. aspect of genetics is:- Heredity and Variation
348. The father of genetics is:- Mendel
349. Mendel worked with which plan to show the transmission of characters:- Garden pea
350. The real carrier of info. from generation to generation:- DNA
351. The double helical structure of DNA was proposed by:- Watson and Crick
352. Two purine bases present in DNA are:- Adenine and guanine
353. Two pyrimidine bases present in DNA are:- Thymine and cytosine
354. In DNA adenine always pairs with:- Thymine
355. In RNA adenine always pair with:- Uracil
356. DNA found in bacteria:- Circular free DNA
357. GMO:- Genetically Modified Organism
358. The only taxonomic category that has real existence:- Species
359. In angiosperms, characters of flowers are used in classification because:- Characters of flowers are conservative
360. Practical purpose of taxonomy or classification is to:- Facilitate the identification of unknown species
361. Two plants can be conclusively said to belong to the same species if they:- Can reproduce freely with each other and form seeds
362. Animals having a built in thermostat to maintain constant body temperature called:- Homeothermic
363. Gymnosperms produce neither flower nor fruit because they don’t possess:- Ovary
364. Gymnosperms are:- Seed bearing plants
365. Viruses are denied a kingdom of their own because:- They are not organisms
366. Of the six kingdoms now recognized:- Four are eukaryotes and two are prokaryotes
367. Throughout the world, official species names are in:- Latin
368. ____ is an organism that is made up of cell that lacks a true nucleus:- Prokaryotes
369. The two word naming system for organisms is called:- Binomial Nomenclature
370. Name the scientist who developed a method of grouping organisms based on physical and structural similarities is:- Carolus Linnaeus
371. Most of the water in the alimentary tract is absorbed through:- Large intestine
372. Villi are not found in:- Stomach
373. Villi are found in:- Colon, Ileum, Jejunum
374. Part of small intestine:- Duodenum, Jejunum, Ileum
375. Part of large intestine:- Caecum, Rectum, Colon
376. A tooth is made up of a solid bony tissue known as:- Dentine
377. The surface of the crown of the tooth is covered with a strong protective layer called:- Enamel
378. Largest internal organ in the human body:- Liver
379. The largest organ of the human body is: Skin
380. ___ prevents food from entering the trachea (wind pipe):- Epiglottis
381. ___ is the common passage for the food eaten and the air breathed:- Pharynx
382. There are __ pairs of salivary glands present in the mouth:- 3
383. Exchange of air occurs in ____ which are also known as ‘air sacs’:- Alveoli
384. Write the correct sequence of the pathway through which air travels after entering the body:- Pharynx, larynx, trachea, bronchioles
385. Normal rate of respiration in an adult human being is_____ times/minute:- 12-20
386. Normal heart rate or an adult man/woman:- 60-100
387. Anatomy:- investigates the body’s structure
388. Physiology:- investigates the processes or functions of living things
389. Universal blood donor:- O group
390. Besides ATP, the end products of aerobic respiration are:- Carbon dioxide and water
391. Which organ system removes substances from the blood, combats disease, maintains tissue fluid balance, and absorbs fat from the digestive tract:- Lymphatic
392. The wrist consists of eight ___ bones:- carpal
393. The largest %age of plasma is:- Water
394. Blood is a type of ___ tissue:- connective
395. The liquid component of blood with the clotting factors removed is the:- Serum
396. The transparent anterior portion of the outer eye coat which allows light rays to enter the interior of the eye is the:- Sclera
397. The coloured (blue, brown, green) portion of the eye, as seen in an anterior view, is which of the following:- Iris
398. Clouding of lens occurs in which of these eye disorders:- Cataract
399. An eye that is too long, or “oval”, results in poor distance vision, a disorder called nearsightedness or:- Myopia
400. Trachoma is a disease of the:- Eyes
401. Contraction of which of the following muscles is involved with changing the shape (thickening) of the lens:- Ciliary muscles
402. Which layer of the eye contains the photoreceptor cells:- Retina
403. Which of the following is commonly called the “blind spot” of the eye because it lacks photoreceptor cells:- Optic disc
404. The hypothalamus:- Regulates the secretory activity of the pituitary gland
405. The acid that helps in digestion is:- HCl
406. Bile is secreted by: Liver
407. The process by which large pieces of food are cut and crushed into smaller pieces is called:- Mechanical digestion
408. The tube that connects the mouth to the stomach is the:- Esophagus
409. The process of breaking down large droplets of fat into small droplets of fat is called:- Emulsification
410. Lipase, an enzyme found in the small intestine, digests:- Fats and oils
411. The digestion of all types of nutrients is completed in the:- small intestine
412. Food that leaves the stomach is in the form of a thick liquid is called:- Chyme
413. BASIC (Beginners All-purpose Symbolic Instruction Code) is:- a programming language
414. ___ is a conventional basic designation of pre-released software:- Beta
415. What is the name of that pre-installed programme on PCs that computer uses to start up/boot up:- OS
416. BIOS:- Basic Input/output system
417. What does mean by Browse:- To view data in a database or online system
418. There is a small file that helps the computer to communicate with certain hardware devices. what this file is called:- Driver
419. Internet is a worldwide collection of interconnected networks which provide a wide variety of services. Mention the network protocols used by internet:- TCP/IP network protocols
420. What is called the memory that can be used by applications to perform necessary tasks while the computer is on:- RAM
421. What is the term used for describing the judgmental or common-sense part of problem solving:- Heuristic
422. RAM is:- Primary memory
423. ___ cable consists of an inner copper core and conducting outer sheath:- Coaxial
424. In an optical fiber the inner core is____ the cladding:- Denser than
425. The inner core of an optical fibre is ___ in composition:- Glass or plastic
426. ___ are used for cellular phone, satellite, and wireless LAN communications:-Microwaves
427. which topology requires a central controller or hub:- Star
428. Which topology requires a multipoint connection:- Bus
429. ___ refers to the physical or logical arrangement of a network:- Topology
430. A ___ is a set of rules that governs data communication:- Protocol
431. Which system ananlyzes spatial information:- Geographical information system
432. Fossil fuels are rich in:- hydrocarbons
433. When animal and plant materials rot in absence of air there is production of gas called:- Bio gas
434. Earth releases its heat by eruption of:- Volcano, hotsprings, geysers etc.
435. Plant materials, vegetation and waste from living things are regarded as:- Biomass
436. Toxic air pollutants like sulphur dioxide and nitrogen oxides are produced by burning:- Coal and Oil
437. Oil, coal and natural gas supply approx.___ percent of the energy used in Pak:- 65
438. Harmful radiation emitted by the sun is:- UV
439. The main constituent of LPG is:- Propane
440. The main constituent of CNG is:- Methane
441. The radiation emitted by a hot furnace are:- Infra-red
442. A solar cell is made up of:- Silicon
443. In a solar panel, the metal used is____:- Silver
444. SI unit of energy is:- Joule
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