Question

What will happen if a farmer grows only one kind of crop?

Answer 1

If a farmer grows only one kind of crop, then we will get only one kind of food. We get various nutrients from different crops. We get carbohydrates from rice, wheat, bajra. We get proteins from pulses. So, we will not get different nutrients if farmers grow only one kind of crop.
Apart from this, the soil will also become weak if we grow the same type of crop over and over again.