Questions

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 a sentence is free from error, select ‘No Error’.

Acquired immunity is the result of an (1)/ interaction with our new environment and (2)/ proper digestion of all that we take off. (3)/ No error (4)

In the following question, out of the four alternatives, select the alternative which is the best substitute of the words/sentence.
Of a disease or poison extremely severe or harmful in its effects

The chemical weathering of feldspar produces

The market structure called monopoly exists where there is exactly ______ seller in any market.

Macro economics deals with

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 a sentence is free from error, select 'No error'.
On Sundays (1)/ I prefer reading (2)/ than going out visiting my friends. (3)/ No Error (4)

In the following passage some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

Books are our ______ friends. They are our guides. We can learn everything from them. The books contain all the great ______ of the world's leaders and we can learn them by reading the books. The books help us find ______ to our questions. The books never fail us. We should read as ______ books as we can. But all books are not good. So we should ______ only good books.

the great ______ of our world.

In 2004, NASA launched the Messenger Spacecraft to study ___.