Question

B. Fill in the blanks
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
The main source of fresh water is
5. Earth is known as
planet due to the presence of water on it.​

Answer 1

Answer:

1.land and water.

2.60%

3.afforestatio

4.rain

5.watery planet

Explanation:

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Answer 2

1. water and land

2. 60%

3. afforestation

4. rain

5. blue