Questions

Which of the following green house gases has the greatest heat-trapping ability?

All respiratory equipment must be approved byl  

Presence of large amounts of nutrients in waters also causes excessive growth of _________ algae.

In the following question, out of the given four alternatives, select the one which best expresses the meaning of the given word.

Ennui

In the following question, a sentence has been given in Direct/Indirect speech. Out of the four alternatives suggested, select the one which best expresses the same sentence in Indirect/Direct speech.

She asked Ravi, "What is worrying you?"

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'.

Go up the beach and watch for tourists (A)/so you could warn anyone(B)/before they get to the water.(C)No error(D)

The innermost layer is the core with a radius of about ___________ km.

Which of the following is the treatment of water pollution?