Erosion and Weathering

What is the primary agent that formed the Grand Canyon?

• Nile River

• Amazon River

• Mississippi River

• Colorado River

Which type of weathering involves the chemical breakdown of rocks?

• Chemical weathering

• Physical weathering

• Biological weathering

• Erosional weathering

Tags

CCSS.RI.5.4

What happens when water freezes in the cracks of rocks?

• It contracts and leaves the rock intact

• It exerts pressure and causes the rock to break

• It has no effect on the rock

• It polishes the rock surface

Tags

CCSS.RI.5.3

Which rock is more vulnerable to chemical weathering due to its mineral makeup?

• Limestone

• Granite

• Gneiss

• Sandstone

What is the pH value of natural rainwater?

• 1.8

• 4.3

• 7.0

• 5.6

What type of erosion is primarily responsible for the formation of river deltas?

• Water erosion

• Chemical erosion

• Ice erosion

• Wind erosion

Which of the following is not a result of physical weathering?

• Tree roots breaking rocks

• Acid rain dissolving limestone

• Ice wedging in rocks

• Wind blowing rock particles

Tags

CCSS.RI.5.3

What is the main source of rainwater's acidity?

• Nitric oxide

• Sulfur dioxide

• Carbon dioxide

• Hydrochloric acid

Which animal is mentioned as contributing to physical weathering?

• Sharks

• Eagles

• Moles

• Lions

What is the effect of acid rain on monuments made of susceptible materials?

• They are eroded over time

• They show no change

• They become stronger

• They become polished

Tags

CCSS.RI.5.3