Question

what are the differences between subsistence farming and commercial farming

Answer 1

subsistence farming is done by people to sustain themselves. In this type there is pressure on the land for grain.

In commercial farming crop is grown for selling to the factory i.e, cotton

Answer 2

The practice of growing crops and raising livestock sufficient only for one's own use, without any surplus for trade is known as subsistence farming.
Commercial farming is the farming done for profit ,where food is produced by advance technology means for sale in market