The removal of top soil by water or wind is called

A. Soil erosion

B. Soil wash

C. Silting of soil

D. Soil creep

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  1. The accumulation of stress along the boundaries of lithospheric plates results in which of the following?
  2. The property of a substance to absorb moisture from the air on exposure is called
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  4. Which of the following elements is non-radioactive?
  5. Which of the following is the lightest metal ?
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  11. Apparatus invented by Archimedes is :
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  18. Water has maximum density at
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  20. The metallic constituents of hard water are
  21. Which of the following is commonly called a polyamide ?
  22. Polythene is industrially prepared by the polymerisation of
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