Erosion and Deposition Flashcard

Front

Erosion and deposition are likely to happen when the land does not have trees or plants.

Back

True

Answer explanation

True. Without trees or plants, soil is more vulnerable to erosion by wind and water, and there is less vegetation to deposit sediment, leading to increased erosion and deposition.

Front

Do rivers deposit large amounts of material when they flow into the ocean?

Back

True

Answer explanation

True. Rivers carry sediments and other materials, which are deposited when they flow into the ocean, forming deltas and contributing to coastal ecosystems.

Front

________ is the process that lays down (drops) sediment in a new location.

Back

Deposition

Answer explanation

Deposition is the process that lays down sediment in a new location, distinguishing it from erosion, which involves the removal of sediment, and weathering, which breaks down rocks. Compaction refers to the process of sediment being pressed together.

Front

The process of moving pieces of soil or rock by mechanisms including gravity, wind, water, ice plants or animals is called

Back

erosion.

Answer explanation

Erosion is the process of moving soil or rock through natural forces like gravity, wind, water, ice, and living organisms. It differs from deposition, which is the accumulation of these materials.

Front

When ________ pound against cracks in rocks on the shore they erode, and pieces of rocks break off and are carried away. The shoreline erodes, forming new landforms, such as ________.

Back

waves; beaches

Answer explanation

Waves pound against rocks on the shore, causing erosion and breaking off pieces. This process shapes the shoreline, leading to the formation of new landforms like beaches, making 'waves; beaches' the correct choice.

Front

The rapid downhill movement of large amount of rock and soil is called a(n)

Back

landslide.

Answer explanation

The rapid downhill movement of large amounts of rock and soil is specifically termed a 'landslide.' Erosion refers to the gradual wearing away of materials, while an avalanche involves snow and ice, and an earthquake is a seismic event.

Front

A large deposit of material from a river into the ocean forms an area called a ________.

Back

delta.

Answer explanation

A delta is formed when a river deposits sediment as it flows into an ocean, creating a landform. This distinguishes it from a bay, peninsula, or isthmus, which are different geographical features.

Front

In deserts, wind deposits grains of sands in mounds called

Back

dunes.

Answer explanation

In deserts, wind shapes and deposits sand into mounds known as dunes. This process creates distinct formations that are characteristic of arid environments, making 'dunes' the correct answer.

Front

Large amount of snow and ice that fall rapidly down a mountain is called a(n)

Back

avalanche.

Answer explanation

A large amount of snow and ice that falls rapidly down a mountain is specifically called an avalanche. This term distinguishes it from other geological processes like landslides, erosion, and deposition.

Front

How can people help control erosion?

Back

By planting trees and vegetation

Answer explanation

Planting trees and vegetation helps control erosion by stabilizing the soil with their roots, reducing runoff, and absorbing water. This prevents soil loss, unlike removing plants or increasing water flow, which can worsen erosion.