Weathering Processes and Effects

What is the primary process through which sedimentary rocks are formed?

• Metamorphism

• Weathering

• Volcanism

• Erosion

Which type of weathering involves the mechanical breakdown of rocks?

• Chemical weathering

• Biological weathering

• Physical weathering

• Thermal weathering

In temperate climates, which process is most responsible for physical weathering?

• Salt crystallization

• Freeze-thaw cycles

• Thermal expansion

• Biological activity

What effect do tree roots have on rocks in the context of weathering?

• They widen and create fractures.

• They dissolve the rocks chemically.

• They polish the rock surfaces.

• They compress the rocks.

Which organisms have a similar effect to tree roots in physical weathering?

• Fungi

• Algae

• Bacteria

• Lichens

What is the role of animal burrowing in the weathering process?

• It creates new rock formations.

• It prevents erosion.

• It exposes rock fragments to chemical weathering.

• It compacts the soil.

What are joints in the context of geology?

• Extensional fractures in bedrock

• Chemical bonds in minerals

• Volcanic fissures

• Sedimentary layers

How do joints contribute to the weathering process?

• They prevent water infiltration.

• They provide pathways for weathering agents.

• They strengthen the rock structure.

• They reduce surface area for weathering.

What is the typical orientation of joints in relation to the surface?

• Parallel

• Perpendicular

• Diagonal

• Random

What is the next topic to be discussed after physical weathering?

• Thermal weathering

• Biological weathering

• Erosion

• Chemical weathering