Question

Why have deserts developed in the south-western part of North America? Name
the important deserts of this region.
List any three countries of North America. Also mention the capitals of each of​

Answer 1

Answer:

Explanation:

During the Paleocene, some time after the dinosaurs' extinction, most of North America (including Alaska) was covered in evergreen tropical rain forests. But after some time, due to a heavy decline in precipitations, these jungles were replaced by dry deciduous forests as well as arid grasslands.