Question

B. Fill in the blanks:
1. Weathering is the ____
of rocks by agents
like temperature, rain, etc.
2. Mechanical weathering is____
of rocks by
elements of weather like heat, frost, wind etc.
and
3. Oxidation is the reaction of_____
water on rocks.
4. O-Horizon of the soil profile contains_
5._____ is the wasteful method of cultivation practised in the hills
​

Answer 1

Answer:

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Answer 2

Answer:

1.Weathering is the disintegration of rocks by agents like temperature, rain, etc.

2.Mechanical weathering is Breaking of rocks by elements of weather like heat, frost, wind, etc.

3.Oxidation is the reaction of oxygen and water on rocks.

4.O-Horizon of soil profile contains organic materials.

5.Shifting cultivation or jhum cultivation is the wasteful method of cultivation practised in the hills.

Explanation:

I am not sure with the 4th answer

Hope the answers are helpful