How do erosion and deposition work together to create a moraine?
A. Waves cause erosion along coastlines and deposit sand away from the shore.
B. Surface water in rivers causes erosion, carrying sediment that gets deposited near an ocean.
C. Glaciers cause erosion as they melt, carrying sediment that gets deposited in a thick layer.
D. Winds cause erosion by blowing around sand that gets deposited in large piles.
C. Glaciers cause erosion as they melt, carrying sediment that gets deposited in a thick layer.
C. Glaciers cause erosion as they melt, carrying sediment that gets deposited in a thick layer.
Erosion and deposition work together to create a moraine through the process of glaciation. Glaciers are large bodies of ice that move slowly over the land, eroding the surface as they do so. As glaciers advance and retreat, they pick up rocks, soil, and other materials and carry them along. This process of erosion leads to the creation of a moraine.
When the glaciers begin to melt, they deposit the collected sediment in a thick layer. This deposition forms a moraine, which is a mound or ridge of unsorted glacial sediment. The size and shape of a moraine can vary depending on the movement of the glacier and the amount of material it carried.
Therefore, glaciers cause erosion by picking up sediment and depositing it in a thick layer, creating a moraine.
To understand how erosion and deposition work together to create a moraine, let's first define what erosion and deposition mean. Erosion is the process of wearing away and removing materials from one place to another, usually due to the action of natural forces like water, wind, or glaciers. Deposition, on the other hand, is the process of depositing or laying down the eroded materials.
Now, let's analyze the answer choices to see which one explains the process of creating a moraine:
A. Waves cause erosion along coastlines and deposit sand away from the shore.
This answer choice relates to erosion and deposition along coastlines but does not directly explain the formation of a moraine. Waves primarily shape and modify coastlines through erosion and deposition, but a moraine is not typically associated with coastal processes.
B. Surface water in rivers causes erosion, carrying sediment that gets deposited near an ocean.
While rivers do cause erosion and deposit sediments near oceans, this answer does not pertain to the creation of a moraine. A moraine is typically formed by a different process.
C. Glaciers cause erosion as they melt, carrying sediment that gets deposited in a thick layer.
This answer is correct. Glaciers are massive bodies of ice that move slowly downhill under the influence of gravity. As glaciers move, they pick up rocks, soil, and other debris, which leads to erosion. When the glacier melts or recedes, it leaves behind the accumulated materials as a thick layer. This process of glacier erosion and subsequent deposition of the eroded materials creates a moraine.
D. Winds cause erosion by blowing around sand that gets deposited in large piles.
While winds can cause erosion and deposition, this answer does not describe the formation of a moraine. Winds are more likely to be associated with the formation of sand dunes, not moraines.
Therefore, the correct answer is C. Glaciers cause erosion as they melt, carrying sediment that gets deposited in a thick layer.