SOIL CLASS 7 MCQ

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Kerala PSC

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Soil is not essential for agriculture. - false

Polythene bags and plastics pollute the soil. - true

The rotting dead matter in the soil is called . - humus

soil is formed by the breaking down of rocks by the action of wind, water and climate....... This process is called . - weathering

A vertical section through different layers of the soil is called the ........ - soil profile

The mixture of ................. and humus is called the soil. - rock particles

If soil contains greater proportion of big particles it is called ........ - sandy soil

If the proportion of fine particles is relatively higher, then it is called clayey soil. - true

Percolation rate of water is different in different types of soil. It is highest in the sandy soil and least in the clayey soil. - true

The water holding capacity is the highest in - clayey soil