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Answer 1

Answer:

Question 1 -

c) It is has balance of all plants.

Question 2 -

c) Afforestation.

Soil erosion happens due to heavy rains, wind, construction, mining ,etc.

Question 3 -

a) Deforestation.

Cutting down trees causes the rain water to erode the soil easily as water is not absorbs by trees or plants.

Question 4-

c) Composting using earthworm.

In vermicomposting , earthworms are used to convert oraganic matter into manure.