A person sleeping in Leh with his head in the open and legs in the shade of a tree is liable to get sunstroke and frostbite at the same time. The reason for this is :

Which one among the following is the poorest source of vitamin A?

From the evolutionary point of view, which one of the following is closer to man?

A type of food poisioning called botulism is caused by a bacterium due to a toxin produced by it. This toxin is extensively used :

Which light is strongly absorbed by the plants?

Consider the following statements :

1. The Malwa region is drained by the tributaries of Sone river.
2. The Chotanagpur region is drained by the tributaries of Mahanadi river.

Which of the statements given above is/are correct?