Question

A material P can exist in three physical states: solid, liquid and gas. No living thing on earth
can exist in the absence of this material. This material falls from the clouds in the form of Q.
Lack of Q for long periods in an area may cause R whereas excess of Q may cause S.
(a) What are P, Q R and S.?
(b) What is the solid state of P known as?

Answer 1

Answer:

1. liquid ,water

2. solid,ice