Read the following excerpt from The Works of John Playfair (1822). What glacial landform is being described?

"For the moving of large masses of rock, the most powerful engines without doubt that nature employs are the glaciers ...[Rock] fragments they gradually transport to their utmost boundaries, where a formidable wall ascertains the magnitude, and attests the force, of the great engine by which it was erected."

A) Arête

B) Drumlin

C) Horn

D) Moraine

Option (D)

Explanation:

A moraine is usually defined as a glaciated landform that is formed by the accumulation of sediments and the moving glaciers. It is comprised of well-sorted sediment particles, which are being shaped during its time of transportation.

There are three distinct types of moraines, namely-

Lateral moraine - These are found to be deposited along the sides of the glacier Medial moraine - This type of moraines joins the two separate glaciers Terminal moraine - This type of moraine is found at the end of the glacier. It is located at the furthest distance from the main glaciers.

Thus, the correct answer is option (D).