Discuss how individuals may reduce energy consumption to create a cleaner and eco-friendly world.

Give a reason for each of the following:

1. 'The Equatorial region is also called the lungs of the world.'
2. The trees found in the Mediterranean region have long roots and thick barks.
3. Tundra region has a low annual range of temperature.

(i) What is organic farming?

(ii) Why is this form of farming gaining popularity in recent times?

Name the economic activities practiced in the tropical grasslands.