B. 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 fresh water is
5.
Earth is known as
planet due to the presence of water on it.
Answers
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2
1. four hemisphere and three zones.
4. rainwater
5. blue
Answered by
2
Answer:
Answer: 1. Earth surface is divided into Torrid and Temperate zones.
Answer 2.At least 33% of the land area of a country should be under the forest. This is the ideal balance for maintaining ecological balance in the environment
Answer 3. afforestation
Answer 4. Sources. The source of almost all fresh water is precipitation from the atmosphere, in the form of mist, rain and snow. Fresh water falling as mist, rain or snow contains materials dissolved from the atmosphere and material from the sea and land over which the rain bearing clouds have traveled.
Answer 5. Planet Earth has been called the "Blue Planet" due to the abundant water on its surface.
Explanation:
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