Questions

Q:

If water smells bad, then that odour can be removed by adding

A) alum B) bleach
C) activated carbon D) deactivated nitrogen
 
Answer & Explanation Answer: C) activated carbon

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Filed Under: General Science
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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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Filed Under: General Science
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Q:

An _______________ is a sudden shaking or trembling of the earth.

A) thunderstorm B) cyclone
C) earthquake D) hurricane
 
Answer & Explanation Answer: C) earthquake

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Filed Under: General Science
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Q:

___ does not relate to measurement of memory capacity.

A) GB B) TB
C) HB D) ZB
 
Answer & Explanation Answer: C) HB

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Filed Under: Computer
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Q:

Beryl is an ore/mineral of

A) Nickel B) Beryllium
C) Lead D) Tin
 
Answer & Explanation Answer: B) Beryllium

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Filed Under: Chemistry
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Q:

Which of the following fuel has maximum calorific value?

A) Petrol B) Coal
C) Wood D) Cow dung  
 
Answer & Explanation Answer: A) Petrol

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Filed Under: Chemistry
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Q:

Polynucleotide chain of DNA contains

A) a nitrogenous base, deoxyribose sugar and phosphate group B) a nitrogenous base, ribose sugar and phosphate group
C) deoxyribose sugar, ribose sugar and phosphate group D) a nitrogenous base and phosphate group only
 
Answer & Explanation Answer: A) a nitrogenous base, deoxyribose sugar and phosphate group

Explanation:

The two DNA strands are called polynucleotidesbecause they are composed of simpler monomer units called nucleotides. Eachnucleotideis composed of one of four nitrogen-containingnucleobases (cytosine, guanine, adenine or thymine), a sugar called deoxyribose, and a phosphate group.

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Filed Under: Biology
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Q:

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate itby selecting the appropriate option.

There are _____ books on computer science in your school library, so you need to purchase them from the market.

A) a few B) a little
C) few D) the few
 
Answer & Explanation Answer: C) few

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Filed Under: English
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