Weathering, Erosion, and Deposition

What is physical weathering?

• The process of breaking down rocks and minerals into smaller pieces without changing their chemical composition.

• The process of breaking down rocks and minerals into larger pieces without changing their chemical composition.

• The process of breaking down rocks and minerals into smaller pieces by changing their chemical composition.

• The process of changing the chemical composition of rocks and minerals without breaking them down into smaller pieces.

How does erosion by water occur?

• Erosion by water occurs when water freezes and expands, breaking apart rocks.

• Water flowing over the surface of the Earth gradually wears away soil and rock, shaping the landforms.

• Water evaporating from the surface of the Earth causes erosion.

• Erosion by water is caused by the movement of tectonic plates.

What causes erosion by wind?

• Force of wind

• Humidity

• Temperature

• Gravity

What is deposition by water?

• The process in which sediments are deposited or laid down by water.

• The process in which sediments are deposited or laid down by ice.

• The process in which sediments are deposited or laid down by gravity.

• The process in which sediments are deposited or laid down by wind.

How does deposition by wind happen?

• Deposition by wind happens when sediment particles are carried by water and then deposited by wind.

• Deposition by wind occurs when the wind blows sediment particles away from the ground.

• Deposition by wind is the process of erosion where wind blows away rocks and soil from one place to another.

• Deposition by wind occurs when the wind can no longer carry sediment particles and they settle on the ground or other surfaces.

Give an example of physical weathering.

• Freeze-thaw weathering

• Volcanic activity

• Erosion

• Chemical weathering

What are the effects of erosion by water?

• Increased fertility of soil, formation of lakes and ponds, and alteration of wind patterns.

• Increased fertility of soil, formation of mountains and plateaus, and creation of new river channels.

• Decreased fertility of soil, formation of deserts and plains, and alteration of ocean currents.

• The effects of erosion by water include the loss of fertile soil, formation of canyons and valleys, and alteration of river courses.

What are the effects of erosion by wind?

• The effects of erosion by wind include the deposition of topsoil, the formation of sand dunes, and the creation of new landforms.

• The effects of erosion by wind include the erosion of rocks, the formation of glaciers, and the shaping of mountains.

• The effects of erosion by wind include the removal of topsoil, the formation of sand dunes, and the shaping of landforms.

• The effects of erosion by wind include the erosion of beaches, the formation of canyons, and the shaping of valleys.

What are the features formed by deposition by water?

• deltas, alluvial fans, and beaches

• volcanoes

• glaciers

• canyons

What are the features formed by deposition by wind?

• sand dunes, loess deposits, and desert pavement

• volcanic ash deposits

• river deltas

• glacial deposits