EVERYDAY SCIENCE

SCIENCE

EARTH SCIENCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the process called when a glacier deposits rocks in oceans and lakes?
A
Deposition
B
Drainage
C
Pollution
D
Depotism
Explanation: 

Detailed explanation-1: -Debris in the glacial environment may be deposited directly by the ice (till) or, after reworking, by meltwater streams (outwash). The resulting deposits are termed glacial drift.

Detailed explanation-2: -Glacial deposition is the settling of sediments left behind by a moving glacier. As glaciers move over the land, they pick up sediments and rocks. The mixture of unsorted sediment deposits carried by the glacier is called glacial till. Piles of till deposited along the edges of past glaciers are called moraines.

Detailed explanation-3: -The various unsorted rock debris and sediment that is carried or later deposited by a glacier is called till. Till particles typically range from clay‐sized to boulder‐sized but can sometimes weigh up to thousands of tons.

Detailed explanation-4: -Glacial till is the sediment deposited by a glacier. It blankets glacier forefields, can be mounded to form moraines and other glacier landforms, and is ubiquitous in glacial environments.

Detailed explanation-5: -Sediments deposited into lakes that have come from glaciers are called glaciolacustrine deposits. These lakes include ice margin lakes or other types formed from glacial erosion or deposition. Sediments in the bedload and suspended load are carried into lakes and deposited.

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