Questions

The percentage of nitrogen in the air is about

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If asentence is free from error, select 'No Error'.

The two men were(1)/ quarrelling with one another(2)/ claiming the same watch as their own.(3)/ No Error(4)

Gaseous exchange takes place in leaves through tiny pores for the purpose of photosynthesis. What are these pores?

______ bond holds the atoms together within a water molecule.

Which element is not a part of a nitrogenous base?

In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.
A man devoid of kind feeling and sympathy.

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/Phrase.
Will-o-the wisp

Under which article, President of India can proclaim constitutional emergency?