…………… wells are very deep.

Open wells are not very ………….. .

A diver when goes very deep, he loses his strength to work and feel drowsy because

In towns and cities, generally , the bore wells have to be dug very deep to get water as compared to bore wells dug in villages. Give suitable reasons.

Why pollen grains are very well preserved as fossils?

Why is that for both very small as well as very large (in addition to ordinary) quantities, the physical measurements are usually expressed in scientific notation, with powers of ten ?

Why is that for both very small as well as very large (in addition to ordinary) quantities, the physical measurements are usually expressed in scientific notation, with powers of ten ?