Sawaal

 General Science Questions

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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:

What is the main cause of temperature rise in the interior of the Earth?

A) Pressure B) Breakdown of radioactive substances
C) Both the pressure and breakdown of radioactive substances D) No option is correct
 
Answer & Explanation Answer: C) Both the pressure and breakdown of radioactive substances

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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 is used as an Air pollution indicator?

A) Algae B) Fungi
C) Bacteria D) Lichens
 
Answer & Explanation Answer: D) Lichens

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Q:

How many steps are there in Suryanamaskar?

A) 24 B) 12
C) 6 D) 3
 
Answer & Explanation Answer: B) 12

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Q:

_______ determines colour, texture, chemical properties, mineral content and permeability of soil.

A) Flora & Fauna B) Time
C) Climate D) Parent rock
 
Answer & Explanation Answer: D) Parent rock

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Q:

Marble comes under which category of rocks?

A) Sedimentary B) Igneous
C) Metamorphic D) None of these
 
Answer & Explanation Answer: C) Metamorphic

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Q:

Which layer of the earth's atmosphere contains the ozone layer?

A) Troposphere B) Mesosphere
C) Ionosphere D) Stratosphere
 
Answer & Explanation Answer: D) Stratosphere

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