The fuel of most widely used cryogenic engines consists of :
Which one among the following is the world's largest exporter of agricultural products
Which one of the following is not required for the formation of photochemical smog?
What is/are the use/uses of maize?
Select the correct answer using the codes given below:
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?