Question

Which of the following best describes the impact of glaciers upon the surface of the earth?
a.
Ice buried continents under a few hundred feet of ice.
b.
Glaciers scraped across the surface and altered landscapes and the course of rivers.
c.
The passage of glaciers created new ecosystems.
d.
All of the above.

Answer 1

b. Glaciers scraped across the surface and altered landscapes and the course of rivers.

Explanation: Glaciers erode and transport rock and sediment, carving features like U-shaped valleys, cirques, and fjords, depositing moraines and drumlins, and redirecting river drainage.