a. to a smaller extent than streams
b. to about the same extent as streams
c. to a greater extent than streams
d. only during the ice ages
2007-03-12 15:50:26 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Earth Sciences & Geology
Well geologists say that when the earth was configured in the Pangea formation about 200 million years ago glaciers carved out many of the great plains that we see today. ie: the midwest was once covered by glaciers that explains why it is so flat.
2007-03-12 17:32:24 · answer #1 · answered by trev0r03 2 · 0⤊ 0⤋
A.
Glaciers are still around today. They are still carving out landscape, although not at as great a scope as streams.
2007-03-12 22:55:03 · answer #2 · answered by Kelly M 4 · 0⤊ 0⤋
Well, let's see. It's not D because there are glaciers now.
2007-03-12 22:54:14 · answer #3 · answered by towanda 7 · 0⤊ 0⤋
Good grief!
"d"
2007-03-12 22:53:14 · answer #4 · answered by tattie_herbert 6 · 0⤊ 1⤋