Glacial Deposition and Moraines

What is glacial deposition?

• Glacial deposition is the process of glaciers melting without leaving any sediments behind.

• Glacial deposition is the process of glaciers depositing only liquid water as they move and melt.

• Glacial deposition is the process by which glaciers deposit sediments, such as rocks, sand, and gravel, as they move and melt.

• Glacial deposition is the process of glaciers depositing volcanic ash instead of sediments.

How does glacial deposition contribute to the formation of landforms?

• Glacial deposition contributes to the formation of landforms by increasing the temperature and causing the melting of ice caps.

• Glacial deposition contributes to the formation of landforms by causing erosion and reducing the elevation of the landscape.

• Glacial deposition contributes to the formation of landforms by creating volcanic mountains and valleys.

• Glacial deposition contributes to the formation of landforms by depositing sediments that shape the landscape, including moraines, drumlins, and eskers.

What are the different types of glacial deposits?

• U-shaped valleys

• Kettles

• Moraines, drumlins, eskers, and outwash plains

• Fjords

Explain the process of till deposition by glaciers.

• Till deposition by glaciers is the process of glaciers depositing only water as they melt, forming till.

• Till deposition by glaciers is the process of glaciers depositing rocks and debris as they freeze, forming till.

• Till deposition by glaciers is the process of glaciers depositing sand and gravel as they move, forming till.

• Till deposition by glaciers is the process of glaciers depositing rocks, soil, and other debris as they melt, forming till.

What are the characteristics of glacial till?

• Sorted and stratified sediment with uniform-sized particles

• Composed of only fine particles

• Formed by the action of wind instead of ice

• Unsorted and unstratified sediment with a mixture of different-sized particles

What is the significance of glacial deposition in shaping the Earth's surface?

• Glacial deposition helps in creating landforms and shaping the Earth's surface.

• Glacial deposition has no impact on shaping the Earth's surface

• Glacial deposition only affects the atmosphere, not the Earth's surface

• Glacial deposition only occurs in small, isolated areas and does not contribute to shaping the Earth's surface

Define moraine and explain its formation.

• Moraine is formed by the accumulation of glacial debris as the glacier moves and deposits material along its edges and at its terminus.

• Moraine is formed by volcanic activity

• Moraine is formed by the accumulation of sand dunes

• Moraine is formed by the erosion of riverbanks

Differentiate between lateral, medial, and terminal moraines.

• Medial moraines are formed at the end of a glacier

• Lateral moraines are formed at the beginning of a glacier

• Lateral moraines are formed along the sides of a glacier, medial moraines are formed where two glaciers merge, and terminal moraines are formed at the end of a glacier.

• Terminal moraines are formed along the sides of a glacier

How do moraines contribute to the study of past glacial activity?

• Moraines contribute to the study of past glacial activity by showing the impact of asteroid collisions

• Moraines contribute to the study of past glacial activity by providing valuable evidence of the extent and movement of glaciers, as well as the timing of glacial advances and retreats.

• Moraines contribute to the study of past glacial activity by causing global warming

• Moraines contribute to the study of past glacial activity by indicating the presence of volcanic activity

Explain the role of moraines in the formation of glacial landforms.

• Moraines have no impact on the formation of glacial landforms

• Moraines are only formed by volcanic activity

• Moraines play a significant role in shaping the landscape through deposition and erosion, forming ridges and contributing to the formation of moraine-dammed lakes.

• Moraines are only found in tropical regions