Geo Project

In short, what is weathering?

• The movement of rock particles by wind or water

• The breaking down of rocks into smaller pieces

• The process by which the weather of a place is determined

• The melting of ice into water

Which of the following is not a type of weathering? (you can select more than one option)

• Freeze-thaw weathering

• Chemical weathering

• Condensate weathering

• Exfoliation (onion skin)

What is deposition in simple words?

• The breaking down of rocks into smaller particles

• The process where soil/rocks are carried away by water or wind

• The dropping of rocks/soil in a new location after being transported

• The formation of new rock layers from magma

Which of the following describes erosion?

• The chemical alteration of rocks by water and air

• The process of breaking down rocks into smaller pieces

• The dropping of sediments in new locations

• The removal and transport of rocks/soil by natural factors like wind

The breakdown of rocks by frost, water and temperature change is called:

• Sedimentation

• Erosion

• Weathering

• Deposition

Which of the following correctly describes the order in which they proceed?

• Weathering < Erosion < Sedimentation

• Erosion < Deposition < Weathering

• Erosion < Weathering < Deposition

• Weathering < Erosion < Deposition

Soil is formed over long periods through the process of _____

• weathering

• erosion

• deposition

The removal of topsoil through erosion also takes away _____ (the organic component off soil that is essential for retaining moisture and supporting plant life)

Which of the following human activities contributes the most to soil erosion?

• Controlled grazing of livestock

• Terrace farming on hillsides

• Deforestation

• Crop rotation

Why is the topsoil particularly vulnerable to erosion compared to the other layers?

• Its the deepest layer and easily dissolves in water

• Its compact and full of rocks, making it unstable

• It is rich in organic matter and loosely held together

• It is protected by bedrock and therefore weak