Question

How do most canyons form?

A.
Wind deposits sand to form large features called sand dunes.
B.
Rivers gradually build up eroded sediment over millions of years.
C.
Volcanoes repeatedly erupt and build up thick layers of lava.
D.
Rivers cut down through plateaus by weathering and eroding rock.

Answer 1

the answer is rivers cut down through plateaus by weathering and eroding rock

Answer 2

D Rivers cut down through plateaus by weathering and eroding rock.