1. Water: in soil is present between and at the surface of soil particles.
2 Air: The spaces between the particles of soil are occupied by air. The amount of air in the soil varies from soil to soil. This air is required for the respiration of plants
3. Organic matter: Organic matter is added to the soil by the decomposition or decay of dead organisms such as plants, animals and micro-organisms. The excreta or organic matter are also added to the soil.
4. Inorganic matter: Inorganic nutrients come into the soil from the rock from which the soil is formed. The soil gets nutrients from time to time in the form of manure (organic matter) and fertilizers.
Soil contains rock particle and ___________ . | |||
Right Option : C | |||
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Silt : | |||
Right Option : C | |||
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Which of the following are correct : (a) The spaces between the particles of soil are occupied by air. (b) In soil water is present between and at the surface of soil particles. (c) Organic matter is added to the soil by the decomposition or decay of dead organisms such as plants, animals and micro-organisms. | |||
Right Option : D | |||
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