General Science Questions

Q:

The _________ keeps the average temperature of the Earth fairly steady.

A) biosphere B) heliosphere
C) atmosphere D) photosphere
 
Answer & Explanation Answer: C) atmosphere

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Q:

A ________________ is known by different names in different parts of the world. It is called a ‘hurricane’ in North America.

A) funnel B) whirlpool
C) cyclone D) twister
 
Answer & Explanation Answer: C) cyclone

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Q:

Living things constitute the biotic component of the ___________________.

A) mesosphere B) biosphere
C) thermosphere D) heliosphere
 
Answer & Explanation Answer: B) biosphere

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Q:

What is the name of the eighth planet discovered by NASA, circling Kepler- 90?

A) Kepler–90g B) Kepler–90h
C) Kepler–90i D) Kepler–908
 
Answer & Explanation Answer: C) Kepler–90i

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Q:

Which of the following is biodegradable?

A) Cattle dung B) Aluminium cans
C) Plastics D) D.D.T
 
Answer & Explanation Answer: A) Cattle dung

Explanation:

Any substance that does not cause pollution and is capable of getting decomposed by any living organism is called as Bio degradable. Human & animal excreta, plant wastes etc... come under bio-degradable.

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Q:

Which of the following planets has the highest revolutionary motion?

A) Mercury   B) Venus
C) Mars D) Jupiter  
 
Answer & Explanation Answer: D) Jupiter  

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Q:

What is organic matter in soil is also called

A) residue B) humus
C) occlusion D) compact
 
Answer & Explanation Answer: B) humus

Explanation:

In soil, organic matter consists of plant and animal material that is in the process of decomposing. When it has fully decomposed it is called humus. Soil organic matter serves as a reservoir of nutrients for crops, provides soil aggregation, increases nutrient exchange, retains moisture, reduces compaction,... 

This humus is important for soil structure because it holds individual mineral particles together in clusters.

 

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Q:

Which of the following is NOT a metamorphic rock?

A) Slate B) Schist
C) Diorite D) Phyllite
 
Answer & Explanation Answer: C) Diorite

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