Weathering and Erosion

What is weathering?

• The movement of sediments from one place to another

• The process by which rocks are broken down into sediments over time

• The building of mountains

• The process of plants growing

What are the two major types of weathering?

• Hot and Cold

• Wet and Dry

• Mechanical and Chemical

• Erosion and Deposition

What causes mechanical weathering?

• Chemical reactions

• All of the above

• Plant growth

• Wind and water

How does chemical weathering occur?

• By moving sediments

• Through physical processes

• By breaking rocks into smaller pieces

• By changing the chemical composition of rocks

What is erosion?

• The depositing of sediments

• The movement of sediments to other locations

• The growth of plants in rocks

• The breaking down of rocks

Which of the following is NOT an agent of erosion?

• Gravity

• Sunlight

• Wind

• Water

What is deposition?

• The movement of sediments by water

• The settling of particles where erosional agents have carried them

• The process of plants breaking rocks

• The breaking down of rocks into sediments

How do human activities affect weathering and erosion?

• By moving rocks and sediments during construction

• By creating more water bodies

• By planting more trees

• By stopping all forms of pollution

What is differential weathering?

• Weathering that affects all rocks equally

• Weathering that occurs due to differences in rock resistance

• The process of erosion and deposition

• Weathering that happens at different times

What can acid rain easily dissolve?

• Sandstone

• Granite

• Limestone

• Quartz