Most grasslands have been replaced by?

Question

most grasslands have been replaced by?

introduced deciduous trees

acres of coniferous trees

single cultures of cereal crops

Answer 1

I bet your textbook, or your professor/teacher's lecture, has the answer.

Answer 2

Where are these grasslands you speak of.  Out in the plains of America .. Between the Rockies and the Appalachians, most of the grass land is intact . Yes there are highways , and cities , and towns ... but mostly untouched prairies.