Sarver Earth's Surface Unit Review

The process by which rocks break down as a result of chemical reactions is called __________________.

• Erosion

• Chemical Weathering

• Physical Weathering

• Deposition

The continent of Antarctica is covered with an ice sheet. Which part of the Earth system includes the ice sheet?

• Biosphere

• Cryosphere

• Atmosphere

• Hydrosphere

Which is an example of abrasion of a rock?

• a shape change due to exposure to wind

• a color change due to exposure to air

• a hole forming to a reaction with water

• a layer falling off due to a lessening of pressure

Wetlands support many plants, animals, and microscopic organisms. Which part of the Earth System includes the water in wetlands?

• Geosphere

• Cryosphere

• Atmosphere

• Hydrosphere

Ships encounter surface currents and waves as they travel across the ocean. Surface currents and waves form when energy from the sun causes two of Earth's spheres to interact. Which two spheres interact to produce these waves and currents?

• geosphere and biosphere

• biosphere and hydrosphere

• cryosphere and atmosphere

• atmosphere and hydrosphere

Each layer of the geosphere has a different composition. What element makes up most of Earth's crust?

• iron

• nickel

• oxygen

• aluminum

Which is a cause of chemical weathering?

• ice

• wind

• oxygen

• gravity

Leaves release acids into the soil as they decay. How could the decaying leaves affect the rocks in the soil underneath them?

• They could increase the amount of physical weathering.

• They could decrease the amount of physical weathering.

• They could increase the amount of chemical weathering.

• They could decrease the amount of chemical weathering.

What often happens to rocks that undergo chemical weathering?

• They form crystals.

• They produce acids.

• They become stronger.

• They crumble more easily.

What force is mainly responsible for the erosion and deposition that happens in landslides, rockfalls, and mudslides?

• Ice

• Wind

• Gravity

• Temperature