Montreal protocol is an essential step. Why is it so?

Water is an essential nutrient.

Why a reproduction is an essential process ?

As compared to the monsoons and winter a very small quantity of urine is produced in the summer season. Why is it so?

Platic ban in Maharastra is an essential step. Give reason.

In adults, the process of urination is under their control but not in infants. Why is it so?

Even though the cranium of elephant is larger than that of man , humans are considered more intelligent than elephant . Why is it so ?

Why is it essential to get training of first aid?

Which of the following carbohydrate is an essential constituent of plant cell?

Two steps of Mitosis