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 General Science Questions

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Q:

The outermost layer of sun is called

A) Lithosphere B) Chromosphere
C) Photosphere D) Corona
 
Answer & Explanation Answer: B) Chromosphere

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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:

The outermost layer of the earth's atmosphere is _______.

A) stratosphere B) troposphere
C) mesosphere D) exosphere
 
Answer & Explanation Answer: D) exosphere

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Q:

The Scientists from China have successfully cloned which animal for the first time?

A) Human B) Dog
C) Monkey D) Sheep
 
Answer & Explanation Answer: C) Monkey

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Q:

The centre of a cyclone is a calm area, it is called the ________ of the storm.

A) point B) needle
C) eye D) limit
 
Answer & Explanation Answer: C) eye

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Q:

What is the process of waste water treatment is commonly known?

A) Waste water management B) Cleaning of water
C) Sewage treatment D) Decontamination
 
Answer & Explanation Answer: C) Sewage treatment

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Q:

The large collection of stars, dust and gas held together by gravitational attraction between components is known as

A) Cluster B) Atmosphere
C) Galaxy D) Sun Family
 
Answer & Explanation Answer: C) Galaxy

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Q:

The boundary between Earth's crust and mantle is _____.

A) Moho discontinuity B) Lehman discontinuity
C) Conrad discontinuity D) Gutenberg discontinuity
 
Answer & Explanation Answer: A) Moho discontinuity

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