Questions

A curved mirror where the reflecting surface is curved inwards is called a

Which one of the following bio reserves of India is not included in the World Network of Biosphere Reserve?

Salination of soil is caused by

Halophytes are plants that grow in

When warm air rises up and cold air from the surrounding areas rushes in to fill its place then this sets up ________________ in air.

Air pollution level is considered to be moderate if Air Quality index between

There are total _________ parliamentary seats (Lok Sabha constituency) in West Bengal.

In the following question, a sentence / a part of sentence is underlined. Below are given alternatives to the underlined part which may improve the sentence. Choose the correct alternative. In case no improvement is required, choose "No Improvement" option.

Usain Bolt is second to one as an athlete.