How many hotspots are there in India? Name them.

How many hours are there in a minute?

How many whorls are there in a flower?

How many 'Biosphere' reserves are there in India?

How many base quantities are there?

The respiratory system includes the respiratory tract, the respiratory organs and air sacs. How many air sacs are present in pigeon. Name them ?

How many orbitals are there in the second orbit? How are they designated?