JC Geography: Mechanical Weathering

What is regolith?

• The loose layer of rock and soil on the earth's surface

• The sturdy, unbreakable layer of rock on the earth's surface

• A process of erosion

• A fancy word for stones

Denudation is the process of...

• breaking up and removing rocks on the surface of the Earth

• sticking rocks back together with wet soil

• the growth of new plants on the surface of the Earth

• the cutting down of trees on the Earth's surface

Which of the following are processes of denudation?

(select more than one)

• Weathering

• Deforestation

• Mass movement

• Erosion

What is weathering?

• The breakdown and decay of rocks that are exposed to the weather

• The breakdown of rocks by animals

• The cutting down of trees by machinery

• The reformation of rocks

What are the two types of weathering?

• Mechanical weathering

• Biological weathering

• Chemical weathering

• Aggressive weathering

The jagged pieces of rock, produced by freeze thaw action are called...

• Scree

• Mee

• Slee

• Shree

Onion weathering is when rock is...

• heated by day and cooled by night repeatedly

• cooled by day and heated by night repeatedly

• kept at the same temperature constantly

Freeze thaw action occurs when water...

• freezes and expands and then cools and melts repeatedly

• freezes and contracts then cools and expands repeatedly

• splashes off rocks repeatedly