Earth's Changing Surfaces

What is glacial ablation?

• The process of ice forming on a glacier or ice sheet.

• The process of glaciers moving and flowing downhill.

• The process of rocks and debris being deposited by a glacier.

• The process of ice melting or evaporating from a glacier or ice sheet.

What is suspended load and how does it contribute to earth's changing surfaces?

• Suspended load is the process of temporarily stopping the flow of a river or stream, and it has no influence on earth's changing surfaces.

• Suspended load is the weight of an object that is hanging from a support, and it has no effect on earth's changing surfaces.

• Suspended load is fine sediment and particles carried by a river or stream, contributing to earth's changing surfaces.

• Suspended load is a type of cloud formation that has no impact on earth's changing surfaces.

Explain what LAHAR is and its impact on the earth's surface.

• Lahar is a type of desert sandstorm that has no impact on the earth's surface.

• Lahar is a type of ocean current that affects marine life but not the earth's surface.

• Lahar is a type of volcanic mudflow that can flow rapidly down the slopes of a volcano and impact the earth's surface.

• Lahar is a type of snow avalanche that occurs in mountainous regions and does not impact the earth's surface.

Define plucking and its role in shaping the earth's surface.

• Plucking is the process of wind erosion shaping the earth's surface through transportation.

• Plucking is the process by which glaciers pick up and carry away rocks and debris, shaping the earth's surface through erosion and transportation.

• Plucking is the process of ocean currents shaping the earth's surface through weathering.

• Plucking is the process of volcanic eruption shaping the earth's surface through deposition.

What is loess and how does it affect the changing surfaces of the earth?

• Loess is a type of sediment that affects the changing surfaces of the earth by being easily eroded and transported by wind, leading to the formation of extensive deposits and shaping landscapes.

• Loess is a type of metal that hardens the earth's surface and prevents any erosion

• Loess is a type of plant that grows rapidly and prevents any changes to the earth's surface

• Loess is a type of volcanic rock that has no effect on the changing surfaces of the earth

Describe the process of mass movement and its impact on the earth's surface.

• Mass movement only occurs in areas with extreme weather conditions

• Mass movement is caused by the rotation of the earth on its axis

• Mass movement refers to the downhill movement of rock, soil, and vegetation under the influence of gravity. This can occur through processes such as landslides, rockfalls, and slumping. The impact on the earth's surface includes the formation of new landforms, erosion of existing features, and potential hazards to human settlements and infrastructure.

• The impact of mass movement on the earth's surface is minimal and insignificant

Explain the concept of weathering and its significance in changing the earth's surfaces.

• Weathering is the process of breaking down rocks, soil, and minerals through exposure to the atmosphere, and it is significant in changing the earth's surfaces.

• Weathering is the process of melting rocks, soil, and minerals through exposure to the atmosphere, and it is insignificant in changing the earth's surfaces.

• Weathering is the process of building up rocks, soil, and minerals through exposure to the atmosphere, and it is insignificant in changing the earth's surfaces.

• Weathering is the process of creating rocks, soil, and minerals through exposure to the atmosphere, and it is insignificant in changing the earth's surfaces.

What is a glacier and how does it contribute to the changing surfaces of the earth?

• Glaciers are large masses of ice that erode and shape the land through processes like plucking and abrasion.

• Glaciers are made of rocks and soil that contribute to the changing surfaces of the earth.

• Glaciers are formed by volcanic eruptions and do not contribute to the changing surfaces of the earth.

• Glaciers have no impact on the changing surfaces of the earth.

Define moraine and its role in shaping the earth's surface.

• Moraine is a type of sedimentary rock that is formed underwater.

• Moraine is a type of soil erosion caused by wind and rain.

• Moraine is a landform made up of glacially deposited rock and soil, and it plays a role in shaping the earth's surface by creating ridges, valleys, and other distinctive landforms as glaciers advance and retreat.

• Moraine is a type of volcanic rock that has no role in shaping the earth's surface.

Discuss the phenomenon of glacial retreat and its impact on the earth's changing surfaces.

• Glacial retreat is causing changes in landforms and contributing to rising sea levels.

• Glacial retreat is a natural process that does not affect the earth's landforms

• Glacial retreat is causing the earth's surfaces to become more stable

• Glacial retreat has no impact on the earth's changing surfaces