Question

The topographic map below shows three drumlins located in New York State.

What was the direction of the advancing ice movement that created these drumlins, and what is the most likely arrangement of sediments in the drumlins?
(1) north to south ice movement, and unsorted sediments
(2) north to south ice movement, and sorted sediments
(3) south to north ice movement, and unsorted sediments
(4) south to north ice movement, and sorted sediments

Answer 1

Option (1)

Step-by-step explanation:

Drumlins are large hills that are mainly comprised of glacial drift, often formed beneath a glacier and are oriented in its ice flow direction. The shape of the drumlins are constructed by the moving ice and is mainly a depositional feature, though its tail is formed by erosion. After the glaciers are melt completely, there remains a scratched land surface and are found to be comprised of relatively unsorted sediments which are usually known as the till deposit.

In the given image, the direction of ice flow is from the northern (stoss end) to the southern direction (lee slope) and the sediments present here are mostly unsorted sediments.

Thus, the correct answer is option (1).

Answer 2

After reviewing the topographic map above of the three drumlins that are in New York State, I have determined the direction of the advancing ice movement that created the drumlins the most likely arrangement of sediments in the drumlins.

They were north to south ice movement, and the arrangement of the sediments were unsorted. The correct answer choice will be number 1.