Q: Tick the correct answer:
a) Which is not a natural ecosystem ?
b) Which is not a component of human environment ?
c) Which is a human made environment ?
d) Which is s threat to environment ?
Ans: Growing population
Q: Match the following:
a) Biosphere – narrow zone where land, water and air interact
b) Atmosphere – blanket of air which surrounds the earth
c) Hydrosphere – domain of water
d) Environment – our surroundings