Weathering and Erosion Concepts

Questions and Answers

What is the definition of weathering?

A force that destroys the land

A force that builds up the land

The moving of soil and rock

The breaking down of rocks and other materials on the Earth's surface (correct)

What does erosion refer to?

The process by which weathered rock and soil are moved from one place to another (correct)

The breaking down of rocks

A force that builds up land

The depositing of weathered material

What is deposition?

The depositing of weathered material.

What is mechanical weathering?

The breakdown of rock into smaller pieces by physical means. Signup and view all the answers

What is chemical weathering?

The process that breaks down rock through chemical changes. Signup and view all the answers

What is a constructive force?

A force that builds up the land. Signup and view all the answers

What is a destructive force?

A force that destroys the land. Signup and view all the answers

What is topography?

Two-dimensional maps that can be used to show three-dimensional features. Signup and view all the answers

What are contour lines?

Lines that connect points of equal elevations. Signup and view all the answers

What is an interval in the context of contour lines?

The break between contour lines. Signup and view all the answers

Study Notes

Weathering

Breaking down of rocks and materials on Earth's surface.

Erosion

Movement of weathered rock and soil from one location to another.

Deposition

Process of depositing weathered materials.

Mechanical Weathering

Physical breakdown of rocks into smaller fragments.
Includes frost wedging (freeze & thaw), thermal expansion (heat & cool), biological actions (e.g., bugs), and abrasion (sand).

Chemical Weathering

Breaks down rocks through chemical reactions.
Examples include biological effects from plants, dissolution from acid rain, and oxidation leading to rusting.

Constructive Force

Forces that contribute to land formation and building up surface features.

Destructive Force

Forces that lead to the destruction and erosion of the land.

Topography

Two-dimensional maps illustrating three-dimensional features and landforms.

Contour Line

Lines on a map that connect points of equal elevation, helping to illustrate the landscape's shape.

Interval

The space or break between contours on a topographic map, indicating elevation differences.

Description

Test your understanding of key geological processes such as weathering, erosion, and deposition. Explore the differences between mechanical and chemical weathering, and the effects of constructive and destructive forces on topography. This quiz is essential for anyone studying Earth science and geomorphology.