Q. Mica and Feldspar forms

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Q. What is the most suitable soil for farming?

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Q. The top soil is known as the

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Q. The soil in which the sand silt and clay are more evenly distributed is known as

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Q. Why plants are green?

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Q. Rain fall decreases from the

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Q. Frost action is a type of

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Q. What is the largest portion in soil?

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Q. What is the main source of energy for living things on earth?

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Q. The worlds wettest and driest places are in

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Q. What is the diameter of sand grain?

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Q. What controls the amount of precipitation is lower or greater than the rate of evapo-transpiration?

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Q. Granite is an example of ?

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Q. Clay soils with high water content can be good for

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Q. What is the measure of concentration of hydrogen ions in a soil?

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Q. Which soils has the large pore spaces between the grains?

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Q. The good balance in the pore spaces between sand and clay gives a supply of

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Q. Which horizon contains many loose pieces of rocks, broken off from the parent rock below by weathering?

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Q. The amount of water trapped in pore spaces is known as

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Q. The removal of soluble minerals and organic matters from the top soil by rain water is known as

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