1A Earth Processes Summative Assessment

Front

What is water erosion?

Back

Water erosion is the process by which water, such as rain or rivers, wears away soil and rock, shaping landforms like valleys and canyons.

Front

How does water erosion affect landforms?

Back

Water erosion can create and change landforms by removing soil and rock, leading to features like canyons, riverbanks, and deltas.

Front

What is the main cause of the Grand Canyon's formation?

Back

The Grand Canyon was primarily formed by water erosion over millions of years.

Front

What happens to erosion when trees are removed from a hillside?

Back

When trees are removed, water erosion increases because there are fewer roots to hold the soil in place.

Front

What natural event can lead to landslides?

Back

Landslides can occur when too much rain soaks the ground, making the soil loose and unstable.

Front

What role do plants play in physical weathering?

Back

Plants contribute to physical weathering by breaking down rocks through their roots and by providing cover that protects soil from erosion.

Front

What is the law of superposition?

Back

The law of superposition states that in undisturbed rock layers, the oldest layers are at the bottom and the youngest are at the top.

Front

What can increase the risk of erosion on a hillside?

Back

Factors like heavy rainfall, removal of vegetation, and human activities can increase the risk of erosion on a hillside.

Front

What is physical weathering?

Back

Physical weathering is the process of breaking down rocks into smaller pieces without changing their chemical composition.

Front

What are some examples of agents of erosion?

Back

Agents of erosion include water, wind, ice, and gravity.