General Science Questions

Q:

Organisms use bio-catalyst to break down complex substances into simpler substances. These bio-catalysts are called ______.

A) enzymes B) hormones
C) vitamins D) No option is correct
 
Answer & Explanation Answer: A) enzymes

Explanation:
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Q:

The uppermost layer over the earth's surface is called the ______.

A) Mantle B) Core
C) Crust D) Exosphere
 
Answer & Explanation Answer: C) Crust

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Q:

Elapidae Naja is the scientific name of _______.

A) Cobra B) Elephant
C) Eagle D) Owl
 
Answer & Explanation Answer: A) Cobra

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Q:

Carbon dioxide fire extinguishers are suitable for

A) Crackers B) Electrical fires
C) Bombs D) All of the above
 
Answer & Explanation Answer: B) Electrical fires

Explanation:

A Carbon Dioxide Fire extinguisher is a specific type of fire extinguisher that can be used on electrical fires and liquid flammable type of liquids and gases.

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2 1806
Q:

Which one of the following is not a Major Abiotic Factors?

A) Temperature B) Water
C) Light D) Air
 
Answer & Explanation Answer: D) Air

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Q:

Which of the following is the main benefit of ozone?

A) absorbs ultraviolet radiation from the Sun B) neutralizes the effects of carbon monoxide
C) reduces pollution levels D) filters particulates from the atmosphere
 
Answer & Explanation Answer: A) absorbs ultraviolet radiation from the Sun

Explanation:

In the given options, all are the benfits of ozone. But, the main benefit of ozone is absorbing ultraviolet radiation from the Sun.

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1 1801
Q:

The most productive ecosystem in the biosphere is

A) Desert B) Open Ocean
C) Estuary D) Tundra
 
Answer & Explanation Answer: C) Estuary

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Q:

Fitness can be achieved only through

A) endurance B) frequency
C) accuracy D) resistance
 
Answer & Explanation Answer: B) frequency

Explanation:

Fitness can be achieved only through frequency.

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