The inner surface of the solar cooker and the outer surface of the containers are painted ----------------

Major components of biogas is

The large scale cutting of trees is called ----------------

Each organism can survive only in a specific type of environment called its -----------------

Which one is example for air pollutants ?

LPG is a ----------------- fuel

The cover of gases surrounding the earth is called the ------------------

Lowering of soil fertility or degradation of its characteristics is called -----------------------

A huge amount of energy stored in nucleus of an atom is called ---------------

Agricultural and animal waste material which can be used as a fuel is called ------------