Weathering, erosion, deposition

What is the process in which sediment particles are picked up and moved from one place to another?

• Erosion

• Sedimentation

• Deposition

• Weathering

How does wind contribute to erosion?

• Wind can carry small particles away from one location and deposit them elsewhere.

• Wind causes rocks to break apart into smaller pieces.

• Wind increases the temperature of the soil, causing it to dry out.

• Wind helps in the formation of clouds and precipitation.

What are canyons formed by?

• Volcanic activity that creates lava tubes.

• Rivers carrying sediments that weather and erode land.

• Glacial movements that carve out valleys.

• Wind erosion that shapes sand dunes.

What is the significance of rivers in shaping landscapes?

• Rivers primarily provide water for irrigation and drinking.

• Rivers erode land, transport sediments, and deposit them, forming features like canyons and deltas.

• Rivers are mainly used for transportation of goods and people.

• Rivers have no significant impact on the landscape.

What role does gravity play in erosion?

• Gravity has no effect on erosion.

• Gravity pulls materials down slopes, contributing to erosion.

• Gravity only affects water flow, not erosion.

• Gravity helps in the formation of mountains, not erosion.

Give an example of mechanical weathering.

• Frost wedging, where water freezes in cracks of rocks and expands.

• Chemical dissolution of minerals in water.

• Erosion caused by wind carrying sand particles.

• Formation of soil from organic matter.

What is weathering?

• The process of breaking down rocks into smaller pieces.

• The process of forming new rocks from magma.

• The process of transporting sediments from one place to another.

• The process of changing the chemical composition of rocks.

What is the breakdown of rock into smaller pieces without changing its composition?

• Chemical weathering

• Mechanical weathering

• Biological weathering

• Erosion

What forces besides moving water cause erosion?

• Wind, ice, and gravity.

• Sunlight and temperature changes.

• Soil composition and vegetation.

• Human activity and pollution.

What is deposition?

• The process where sediments are laid down in a new location.

• The process of eroding rocks into smaller pieces.

• The process of water evaporating from a surface.

• The process of plants absorbing nutrients from the soil.