Questions

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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Q:

Chernobyl disaster is the result of pollution by_____________

A) Oil spill B) Acid rain
C) Carbon dioxide D) Radioactive waste
 
Answer & Explanation Answer: D) Radioactive waste

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Q:

The place on the earth's surface above the focus is called the __________.

A) focus B) incentre
C) epicentre D) circumcentre
 
Answer & Explanation Answer: D) circumcentre

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Q:

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.

At somebody's expense

A) Paid for by someone. B) To blame a crime on someone else.
C) The unlucky persons who lose a race. D) If one person benefits it is always at the loss of another.
 
Answer & Explanation Answer: A) Paid for by someone.

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Q:

Read the sentence to find out whether there is any error in it. The error, if any, will be in one part of the sentence. If the given sentence is correct as it is, the answer is ‘No error’. Ignore the errors of punctuation, if any.

The ruling party stood/ for implementation of the bill/ and was ready to/ stake their political existence.

A) The ruling party stood B) For implementation of the bill
C) And was ready to D) Stake their political existence
 
Answer & Explanation Answer: D) Stake their political existence

Explanation:

The error lies in the 4th part of the sentence. The subject is 'the ruling party' which is singular; hence 'their' should be replaced by 'its' as their is a possessive pronoun for plural subjects and its is the possessive for singular subjects.

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Q:

___________ gases absorb long wave (infrared) radiation from the earth and emit it again towards the earth.

A) Methane B) Greenhouse
C) Carbon dioxide D) Ozone
 
Answer & Explanation Answer: B) Greenhouse

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Q:

Which of the following is a greenhouse gas or a gas, which can deplete the ozone layer?

A) As B) Kr
C) C4H8 D) CH4
 
Answer & Explanation Answer: D) CH4

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Q:

Atomic Number of Hydrogen is _______.

A) 4 B) 3
C) 2 D) 1
 
Answer & Explanation Answer: D) 1

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