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Q:

Molecular clocks are based on the idea that _____.

A) On average neutral mutations arise at a constant rate B) Directional selection occurs at a constant rate
C) Mutations occur once every generation D) Molecules resonate at a certain frequency that can be measured
 
Answer & Explanation Answer: C) Mutations occur once every generation

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Q:

The innovation theory of profit was proposed by

A) Marshall B) Clark
C) Schumpeter D) Joan Robbinson
 
Answer & Explanation Answer: C) Schumpeter

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Q:

Which one of the followingis notan allotrope of carbon?

A) Coal B) Diamond
C) Graphite D) Graphene
 
Answer & Explanation Answer: A) Coal

Explanation:

Allotropy is the property of some chemical elements to exist in two or more different forms, or allotropes, when found in nature. There are several allotropes of carbon like diamond, graphite, graphene, fullerene, etc.Coal is not an allotrope of carbon because it is not 100% carbon. It contains lot of silica, sulphur and other compounds of carbon apart from carbon.

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Q:

The chemical weathering of feldspar produces

A) illite B) kaolinite
C) both 1 & 2 D) none
 
Answer & Explanation Answer: C) both 1 & 2

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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.

Back to the drawing board

A) An idea has been unsuccessful and that a new one must be devised B) A person decides his own fate
C) All efforts can be wasted because of one mistake D) One always returns to his roots in times of crisis
 
Answer & Explanation Answer: A) An idea has been unsuccessful and that a new one must be devised

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Filed Under: English
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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.

 

A thorn in the flesh

A) A minor discomfort which is easily ignored. B) To fight despite being injured.
C) A source of continual annoyance or trouble. D) A person within close family whom you secretly hate.
 
Answer & Explanation Answer: C) A source of continual annoyance or trouble.

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Q:

The sentences given with blanks are to be filled with an appropriate word(s). Four alternatives are suggested for each question. For each question, choose the correct alternative and click the button corresponding to it.

The new railway counter at Dwarka should _____ all travellers.

A) benefit B) reward
C) reserve D) provide
 
Answer & Explanation Answer: A) benefit

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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 it by selecting the appropriate option.
______________ to my political rival's statement, the data reveals crime has not increased in this country.

A) Accepting B) Contrary
C) Reference D) Assisting
 
Answer & Explanation Answer: B) Contrary

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