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101.

The polynucleotides were found in which of the following meteorites which fell in Ukraine?A. Muchison meteriteB. Mighi meteoriteC. MeteoriteD. Both (a)and (b)

Answer» Correct Answer - D
102.

Thory of spontaneous generation was given :A. RediB. PasteurC. Van HelmoutD. Spallanzain

Answer» Correct Answer - C
103.

Origin of life was due to :A. will of GodB. spontaneous generationC. effect of sun-rays on mudD. none of the above

Answer» Correct Answer - D
Life originated by a process of chemical evolution.
104.

The origin of life on Earth can be traced to :A. GodB. ProtistaC. Microorgainsms from other planetsD. Some compounds formed on primitive Earth

Answer» Correct Answer - D
105.

What is the difference between spontaneous generation and biogenesis?A. Biogenesis supposes that the non-living materials can produce life, while spontaneous generation follows the idea that living things come only form the other living thingsB. Spontaneousgeneration and biogenesis both support the theory that non-living materials are the source of living organismsC. Spontaneous generation proposes that the non-living materials can produce life, biogenesis follows the idea the living things come only from other living thingsD. Spontaneous generation applies only to plants and how they produce life, while biogenesis applies to animals and how they produce life

Answer» Correct Answer - C
106.

Which one of the following theories is also called theory of abiogenesis?A. Theory of special creationB. Theory of spontaneous generationC. Theory of cosmozoic originD. Theory of catastrophism

Answer» Correct Answer - B
107.

Fransisco Reddi performed his experiment to prove theory biogenesis in the yearA. 1668B. 1767C. 1860D. 1890

Answer» Correct Answer - A
108.

The first fossil evidence of fossil dates back from :A. 4.2 billion years agoB. 4.0 billion years agoC. 4.5 billion years agoD. 2.5 billion years ago

Answer» Correct Answer - B
109.

The endosymbiotic theory states that……,one piece of evidence supporting this theory is the fact that …A. The first hereditary material was RNA, mitochondria and chloroplasts have heredity based on RNAB. The genomes of complex animals came in part from the genomes of invading pathogens, the human genome contains the complete genomes of 120 viruses and 10 bacteriaC.D.

Answer» Correct Answer - C
110.

The most widely accepted view for origin of life isA. BiogenesisB. AbiogenesisC. Biochemical originD. Biopoiesis

Answer» Correct Answer - C
111.

The energy used in the Miller-Urey experiment was :A. photo energyB. electric sparkC. atomic radiationD. mechanical energy

Answer» Correct Answer - B
112.

Surface plates of earth are able to move with respect to one another becauseA. The lie over semi-molten asthenosphereB. Centrifugal force generated due to spinning of earthC. Orbital movement of earthD. Gravitational pull of Sun and Moon.

Answer» Correct Answer - A
113.

Surface plates of earth are made ofA. Crust and solid part of upper mantleB. Outer heterogeneous part of crustC. Both outer heterogeneous and lower homogeneous crust.D. Lower homogeneous part of crust

Answer» Correct Answer - A
114.

Earth is differentiated into three layers. The outer level isA. LithosphereB. AsthenosphereC. MantleD. Crust

Answer» Correct Answer - D
115.

Life came from outer space. This theory is :A. spore theoryB. naturalistic thoeryC. special creation theoryD. spontaneous generation

Answer» Correct Answer - A
116.

The energy source for the creation of the first organic compounds came fromA. Electronic dischargeB. UV lightC. High temperature from volcanoesD. All of the above

Answer» Correct Answer - D
117.

The energy to allow chemogenic reactions came fromA. UV raysB. Electric discharge from lightningC. Cosmic raysD. All of the above

Answer» Correct Answer - D
118.

Mesosphere is component ofA. AtmosphereB. HydrosphereC. LithosphereD. Asthenosphere

Answer» Correct Answer - A
119.

Match the column A. A-2,B-1,C-3B. A-3,B-2,C-3C. A-1,B-2,C-3D. A-1,B-3,C-2

Answer» Correct Answer - D
120.

Match the following columns A. A-1,B-3,C-2,D-4B. A-1,B-2,C-3,D-4C. A-2,B-3,C-1,D-4D. A-2,B-1,C-3,D-4

Answer» Correct Answer - A
121.

Match the following columns A. A-1,B-2,C-3B. A-2,B-3,C-1C. A-3,B-2,C-1D. A-1,B-3,C-2

Answer» Correct Answer - B
122.

Life originated in theA. PrecambrianB. MesozoicC. CoenozoicD. Proterozoic

Answer» Correct Answer - A
123.

Coacervates belongs to the category of :A. CyanobacteriaB. ProtozoansC. Molecular aggregatesD. Molecular aggregate surrounded by lipid membrane

Answer» Correct Answer - D
124.

The primitive earth earth conditions were experimentally shown byA. Urey and MillerB. MillerC. OparinD. Both (a) and (b)

Answer» Correct Answer - D
125.

Big bang theory was proposed byA. DarwinB. LemaitreC. MillerD. Pasteur

Answer» Correct Answer - B
126.

In mesosphere, the temperatureA. Rises from-`2^(@)C` to `15^(@)C`B. Rises from-`2^(@)C` to `92^(@)C`C. Decreases from -`2^(@)C` to `-15^(@)C`D. Decreases from -`2^(@)C` to `-92^(@)C`

Answer» Correct Answer - D
127.

One of the possible ear,ly sources of energy was/were:A. ClorophyllB. Green plantsC. Carbon dioxideD. UV rays and prebiotic

Answer» Correct Answer - D
128.

what is the peculiarity of chemoautotophs?A. Synthesis their own organic foodB. Pick up energy form chemical reactionsC. Convert light energy into chemical energyD. Both A and B

Answer» Correct Answer - D
129.

Atmospheric layer protective to living beings from harmful rays isA. MesosphereB. OzonosphereC. ThermosphereD. Both B and C

Answer» Correct Answer - D
130.

In thermosphere the temperatureA. Rises with height to `200^(@)C`B. Rises with height to `1500^(@)C`C. First decreases then risesD. Decreases to `-150^(@)C`

Answer» Correct Answer - B
131.

Which layer of atmosphere is important for telecommunications?A. TroposphereB. OzonosphereC. MesosphereD. Thermosphere

Answer» Correct Answer - D
132.

An important feature of the early atmosphere was the virtual absence ofA. `N_(2)`B. `CO_(2)`C. `HCN`D. `O_(2)`

Answer» Correct Answer - D
133.

The experiment to show the production of mice in 21 days from carried out byA. Jean Baptiste von HelmontB. Louis PasteurC. AristotleD. Francisco Reddi

Answer» Correct Answer - A
134.

Sunlight takes time to reach earth.It isA. 8.3 minB. 6.7 minC. 0.1 minD. 0.03 min

Answer» Correct Answer - A
135.

Peculitary of Saturn isA. Absence of moonsB. Presence of moonsC. Occurrence of ringsD. Its brightness

Answer» Correct Answer - C
136.

The solar system was created by the collapse of solar nebula. Solar nebula was theA. Gaseous cloudB. Solid ball of soilC. Liquid of water and mineralsD. Solid iron

Answer» Correct Answer - A
137.

Who discovered solar nebula?A. Abbe LemaitreB. KantC. Louis PasteurD. None of these

Answer» Correct Answer - B
138.

According to the Big Bang theory, the gaseous clouds, which created solar system areA. Hydrogen and heliumB. Solar nebulaC. Milky wayD. Methane and ammonia

Answer» Correct Answer - B
139.

In solar system, earth lies betweenA. Mercury and venusB. Venus and MarsC. Mars and JupiterD. Jupiter and Saturn

Answer» Correct Answer - B
140.

The solar system was created approximatelyA. 4.5 billion years agoB. 3.3 billion years agoC. 2.3 billion years agoD. 2.0 billion years ago

Answer» Correct Answer - A
141.

Lithosphere comprisesA. Pedosphere and outer crustB. Outer crust and lower crustC. Pedosphere,outer crust and lower crustD. Crust and part of upper mantle

Answer» Correct Answer - D
142.

Ozone makes the stratosphereA. cooler by `17^(@)C`B. Warmer by `17^(@)C`C. Warmer by `53^(@)C`D. cooler by `50^(@)C`

Answer» Correct Answer - C
143.

Concentration of ozone in troposphere isA. 0.05 ppmB. 0.1 ppmC. 1.5 ppmD. 10.0 ppm

Answer» Correct Answer - A
144.

Which one is nearly absent in ozonosphere?A. Dust particlesB. Water vapoursC. `CO_2`D. All the above

Answer» Correct Answer - D
145.

Ozone is absent inA. TroposphereB. MesosphereC. StratosphereD. None of the above.

Answer» Correct Answer - B
146.

Ionosphere occurs inA. ThermosphereB. HomosphereC. MesosphereD. Startosphere

Answer» Correct Answer - A
147.

Evolution of the `DNArarrRNArarr` protein system was a milestone because the protocell:A. was heterotrophic fermenterB. needed energy to growC. could now reproduceD. all of the above are correct

Answer» Correct Answer - C
148.

Which type of respiration probably arose first?A. Aerobic as it is more complesB. Aerobic as it releases more energyC. Anareobic as it releases more energyD. Anaerobic as early atomsphere contained little or no oxygen

Answer» Correct Answer - D
149.

Life originted in the era:A. proterozoicB. mesozoicC. precambrianD. coneozoic

Answer» Correct Answer - C
150.

The sum and planets formed from :A. 3.0 billion years agoB. 10 billion years agoC. 4.6 billion years agoD. 20 billion years ago

Answer» Correct Answer - C
On the basis of geological , chemical and physical data, the scientists have come to the canclusion that solar system came into being about 4.57 bilion years ago.