General Science Questions

Q:

An enzyme speeds up a reaction by

A) raising the activation energy B) absorbing energy
C) lowering the activation energy D) None of the above
 
Answer & Explanation Answer: C) lowering the activation energy

Explanation:

An enzyme speeds up a reaction by lowering the activation energy which is done by catalysts to increase the rate.

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Q:

Light passes through the following structures in which order?

A) Cornea, Pupil, Lens and Retina B) Cornea, Retina, Lens and Pupil
C) Retina, Lens, Pupil and Cornea D) None of the above
 
Answer & Explanation Answer: A) Cornea, Pupil, Lens and Retina

Explanation:

From the cornea, the light passes through the pupil. From there, it then hits the lens, the transparent structure inside the eye that focuses light rays onto the retina. The iris, or the colored part of your eye, regulates the amount of light passing through. 

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Q:

All of the following are excretory (waste) products of animals, except

A) Uric Acid B) Ammonia
C) Carbohydrates D) Urea
 
Answer & Explanation Answer: C) Carbohydrates

Explanation:
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Q:

In which of the following animals is can breathe through their skin?

A) Frog B) Shark
C) Whale D) Cockroach
 
Answer & Explanation Answer: A) Frog

Explanation:
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Q:

The most important thing in backing a motor vehicle is

A) the conditions of the weather B) looking back carefully
C) waiting until you can see the overtaken vehicle in your review mirror D) waiting until you can see the overtaken vehicle in your review mirror
 
Answer & Explanation Answer: B) looking back carefully

Explanation:
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Q:

Most stars are at what point in their life cycles?

A) Supernova B) Protostar
C) Red Giant D) Main Sequence
 
Answer & Explanation Answer: D) Main Sequence

Explanation:

most_stars_are_at_what_point_in_their_life_cycles1560330646.jpg image

Most stars are at main sequence point in their life cycles.

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Q:

Which Chinese space probe touched down on the far side of the moon?

A) Voyager 2 B) Juno
C) Mars Pathfinder D) ChangE4
 
Answer & Explanation Answer: D) ChangE4

Explanation:
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Q:

Kyoto Protocol is related to

A) Wetland conservation B) Ozone depletion
C) Air pollution D) Climate change
 
Answer & Explanation Answer: D) Climate change

Explanation:
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