General Science GK Questions 1

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[1] Which one of the following depresses brain activity and produces feelings of calmness, relaxation, and drowsiness?

[A] Valium

[B] Morphine

[C] Hashish

[D] Amphetamines


[2] In India, cluster bean [Guar] is traditionally used as a vegetable or animal feed, but recently the cultivation of this has assumed significance. Which one of the following statements is correct in this context?

[A] The oil extracted from seeds is used in the manufacture of biodegradable plastics

[B] The gum made from its seeds is used in the extraction of shale gas

[C] The leaf extract of this plant has the properties of anti-histamines

[D] It is a source of high-quality biodiesel



[3] Which one of the following is the correct sequence of a food chain?

[A] Diatoms-Crustaceans-Herrings

[B] Crustaceans-Diatoms-Herrings

[C] Diatoms-Herrings-Crustaceans

[D] Crustaceans-Herrings-Diatoms



[4] Which one of the following terms describes not only the physical space occupied by an organism but also its functional role in the community of organisms?

[A] Ecotone

[B] Ecological niche

[C] Habitat

[D] Home range



[5] The increasing amount of carbon dioxide in the air is slowly raising the temperature of the atmosphere because it absorbs

[A] the water vapor of the air and retains its heat

[B] the UV part of the solar radiation

[C] all the solar radiations

[D] the infrared part of the solar radiation



[6] Which of the following is/are cited by the scientists as evidence/evidence for the continued expansion of the universe?

[1] Detection of microwaves in space

[2] Observation of the redshift phenomenon in space

[3] Movement of asteroids in space

[4] Occurrence of supernova explosions in space code

Answer options:

[A] 1 and 2 only

[B] 2 only

[C] 1, 3 and 4

[D] None of the above can be cited as evidence.



[7] A pesticide which is a chlorinated hydrocarbon is sprayed on a food crop. The food chain is: Food crop – Rat – Snake-Hawk, in this food chain, the highest concentration of the pesticide would accumulate in which one of the following?

[A] Food crop

[B] Rat

[C] Snake

[D] Hawk



[8] If a potato is placed on a pure paper plate that is white and unprinted and put in a microwave oven, the potato heats up but the paper plate does not. This is because:

[A] Potato is mainly made up of starch whereas paper is mainly made up of cellulose

[B] Potato transmits microwaves whereas paper reflects microwaves

[C] Potato contains water whereas paper does not contain water

[D] Potato is a fresh organic material whereas paper is a dead organic material



[9] With reference to the evolution of living organisms, which one of the following sequences is correct?

[A] Octopus-Dolphin-Shark

[B] Pangolin- Tortoise-Hawk

[C] Salamander-Python-Kangaroo

[D] Frog-Crab-Prawn




[10] Consider the following statements:

[1] An object must be at both foci of an elliptical orbit.

[2] All the planets move in their orbits at the same speed.

[3] All the planets revolve around the sun with the same period.

Which of the statements given above is/are incorrect?

Answer options:

[A] 1 and 3 only

[B] 1 and 2 only

[C] 2 and 3 only

[D] 1, 2 and 3




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