The biotic component of the biosphere is not constituted by:

State reasons for the following:
$(i)$ Excess burning of coal causes greenhouse effect.
$(ii)$ Soil is a mixture.
$(iii)$ Temperature ranges from $-190^{\circ} C$ to $110^{\circ} C$ on the surface of the moon.

Distinguish between biodegradable and non-biodegradable natural resources.

State any two harmful effects each of:
$(a)$ Air pollution,and
$(b)$ Water pollution.

Write a note on how forests influence the quality of our air,soil,and water resources.

Differentiate between renewable and non-renewable natural resources with examples.