Question

what are crumbs why should they be broken

Answer 1

the ploughed field may have big clumps of soil called as crumbs
it is necessary to break these crumbs because while levelling the field it may interfere in levelling purpose. ..

Answer 2

Answer:

The crumbs are the big pieces of the soil formed when the field is ploughed.They should be broken,so that the air circulation in soils takes place.

Explanation: