When the surface soil is washed away through excessive rains and floods, it is called A. Biodiversity B. Land degradation C. Deforestation D. Soil erosion

The correct answer is - option D. Soil erosion.

Explanation:

Soil erosion is a normally happening process that has an impact on all landforms. In common agriculture soil erosion alludes to the removing or disintegration of a field's top layer by the normal physical powers of water  

Running water is the main source of soil erosion since water is plenty of quantity and has great power. Exercises that eliminate vegetation upset the ground, or permit the ground to dry are exercises that expand disintegration.

Thus, the correct answer is - option D. Soil erosion.

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