Because they are told to by the Government.
Kind of. Farmers can grow things like corn and soybeans, both of which can be used to make plastics.
fields
There are over 200 varieties of Lupins, can grow up to 5 feet tall
corn
Corn
Three crops farmers might grow in the northeast are corn, fruits, and vegetables
corn,barley and wheat.:-]
Neither, they grow weevily wheat and/or barley.
Yes, New Mexico farmers grow over 125,000 acres of corn annually.
Alaska. The farmers there are unable to grow corn at all.
tobbaco corn wheat
Lupins are a type of long, slim flower. They come in a wide variety of colors and grow in North and South America.