Two underground stems utilised as food are

Roots of following plants can fix atmospheric nitrogen;

Name the tool that you would use to measure how much time has passed.

The food component that can be obtained only from plant source is

Butter and Ghee are major sources of

Body building foods are

produces energy in our body

On application of iodine solution to a slice of bread colour of bread becomes

What are animals, which eat both plants and animals, called?