Questions

Out of the four alternatives, choose the one which can be substituted for the given words/sentences and click the button corresponding to it.

A place where astronomical observations are made

Name the gas used in preparation of bleaching powder

Sour taste of lemon is due to the presence of which of the following ?

Study of classification of organisms is known as _____.

 During the night, the direction of the wind would be from the __________________.

While watching 3D movies at the theater, we have to wear special glasses because?

The ozone layer is mainly found in the lower portion of the _______.

Select the word with the correct spelling.