Understanding Weathering Processes

What is weathering?

• The process of rocks breaking down into smaller pieces.

• The movement of rocks from one place to another.

• The formation of new rocks from magma.

• The melting of rocks due to high temperatures.

Which of the following is a type of weathering?

• Erosion

• Deposition

• Chemical weathering

• Sedimentation

What is the main cause of physical weathering?

• Chemical reactions

• Temperature changes

• Water flow

• Plant growth

Which of the following is an example of chemical weathering?

• Ice wedging

• Rusting of iron

• Wind abrasion

• Rockfall

What role do plants play in weathering?

• They protect rocks from weathering.

• Their roots can break rocks apart.

• They cause rocks to melt.

• They have no effect on weathering.

Which of the following is NOT a factor in weathering?

• Climate

• Rock type

• Time

• Latitude

What is the result of weathering?

• Formation of new rocks

• Breaking down of rocks into soil

• Movement of rocks

• Melting of rocks

Which type of weathering involves the reaction of rock minerals with water?

• Physical weathering

• Biological weathering

• Chemical weathering

• Mechanical weathering

What is the effect of acid rain on rocks?

• It causes physical weathering.

• It causes chemical weathering.

• It prevents weathering.

• It has no effect on rocks.

Which of the following is an example of physical weathering?

• Dissolution of limestone

• Oxidation of minerals

• Freeze-thaw cycles

• Acid rain