Question

why do farmers plough their farms​

Answer 1

so that the soil texture could be softened...

and it makes the soil rich

Answer 2

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The various agricultural tasks are performed by farmers for healthy and good yield of crops. Ploughing the field helps in increasing the water holding capacity , in preparing the soil by loosening and turning it , improving the circulation of air through soil , penetration of roots deeper into the soil and in removing weeds . This is the reason that farmers plough their fields