By eating rice alone, we can fulfill the nutritional requirement in our body.

Varous types of transport mechanisms are needed to fulfil the mineral requirement of a plant. Why are they not fulfilled by diffusion alone?

Why is sodium chloride required in our body?

The radiation that can penetrate deepest in our body

Why vitamin C can not be stored in our body?

Name one condition (or disease) which can lead to the dehydration of our body.