Soil

  
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1. When the rotting dead matter mixes up with soil and forms the upper surface of the soil, it is called

2. Property of soil to allow the water to filter through it is called

3. When the amount of large and fine particles is almost same, then the soil is called soil.

4. If soil contains big particles in a greater proportion, it is called soil.

5. In addition to the rock particles, the soil contains , , and

6. soil is fertile in nature.

7. soil has poor water holding capacity.

8. Clayey soil is used for growing crops like and

9. Razia conducted an experiment in the field related to the rate of percolation. She observed that it took 40 min for 200 rnL of water to percolate through the soil sample. Then the rate of percolation is

10. The use of should be minimised to prevent soil pollution.