GENERAL GEOLOGY

GEOLOGY

PHYSICAL GEOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which external force most likely formed the Great Lakes?
A
Plate separation made the ground sink
B
Strong winds wore down the ground
C
Rivers eroded the ground
D
Glaciers scraped the ground
Explanation: 

Detailed explanation-1: -The Great Lakes were created by glacial erosion, and are important as a natural boundary, a fishery, a transportation medium, and for recreation.

Detailed explanation-2: -Grand Canyon is perhaps the best example of a water-carved canyon. Water has tremendous erosive power, particularly when carrying large amounts of sediment and rock, like the Colorado River does when flooding.

Detailed explanation-3: -The causes of continental drift are perfectly explained by the plate tectonic theory. The earth’s outer shell is composed of plates that move a little bit every year. Heat coming from the interior of the earth triggers this movement to occur through convection currents inside the mantle.

Detailed explanation-4: -Erosion is an external force that is constantly changing the surface of Earth. Subduction is the physical process in which heavy oceanic plates slide under continental plates. Continental drift is caused by external forces. The amount of water in the water cycle is constantly changing.

There is 1 question to complete.