Unit 6 Review: Earth's Surfaces

Glaciers for what shaped valley?

• v-shaped

• u-shaped

• s-shaped

Streams and Rivers form what shaped valley?

• v-shaped

• u-shaped

• s-shaped

What weathering requires a chemical reaction to occur?

• mechanical weathering

• ,chemical weathering

what caused these limestone formations to form?

• mechanical weathering caused by water dripping

• chemical weathering caused by water dripping

what does the process of weathering include?

• movement of sediment from broken rock

• breaking down of rock

• placement/deposit of sediment in a new location

A landslide may occur when...

• water and wind combine to cause mechanical weathering and erosion

• water and gravity combine to cause mechanical weathering and erosion...

• water and plants combine to cause mechanical weathering and erosion...

Erosion and deposition by wind form sand dunes.

• true

• false

When water freezes in cracks in rocks, it expands causing the rock to break. This is known as...

• ice breaking

• ice wedging

• ice melting

The destructive force caused by the chemical reactions of water, oxygen, carbon, and other chemicals in the presence of moisture and heat is known as...

• Mechanical weathering

• Photosynthesis

• Chemical weathering

Deposition happens at the beginning of the erosion journey, when the rock is dropped in a new place. 

• true

• false

Answer explanation

deposition happens at the end of the journey.