Question

What do you mean by levelling​

Answer 1

Answer:

Explanation:

Direct Leveling : Direct measurement, precise, most commonly used; types: ... Profile leveling : finding of elevation along a line and its cross section. Reciprocal leveling : Along a river or pond. Two level simultaneously used, one at either end.

Answer 2

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⌦ Levelling: The ploughed field may have big pieces of soil called crumbs. It is neccesary to break these crumbs with a plank. The field is levelled by leveller for sowing as well as irrigation purposes.