Question

Fill in the blanks
1.
Earth's surface is divided into
and
zones
2.
To maintain ecological balance,
of the land should be under forest.
3. Planting of trees is commonly known as
4. The main source of freshwater
5. Earth is known as
planet due to the presence of water on it.​

Answer 1

Answer:

1=3layers

4=rain water

Answer 2

Answer:

1. 2 zones

3. afforestation

4. groundwater

5. blue