Question

Answer the following questions in long.

3. Write a short note on any two forces which help in weathering of rocks.

4. With the help of an activity, How can you determine the percentage of water absorbed by various soils. ​

Answer 1

Answer:

the re are two types of force:-

1.gravitational force

2. centrifugal force

Explanation:

short note:-

water acid salts plants animals and changes in temperature or agents of weathering Once Rock has been broken down if process is called transports the bits of Rock and mineral no rock on Earth is hard enough to reset the of the forces of weathering and erosion

Answer 2

Answer:

ans- 3. 1) Physical factors - these include factors that contribute the mechanical breakdown of rocks. ...

2) chemical factors - this involves the chemical changing of the structure of the rocks. Chemicals such as carbonic acid formed from the reaction of CO2 and rain, dissolve or weaken the rocks to cause weathering.

ans - 4 Volume of water absorbed by the soil = (U - V) mL. Weight of water absorbed by the soil = (U - V) g (1 mL of water has weight equal to 1 g). Percentage of water absorbed = [(U-V) / 50]100.

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