Unit 7 Test Review

The process of breaking up Earth's surface into sediment is called...

• sediment
• erosion
• weathering
• deposition 

What is sediment?

• the process of rocks being broken down and carried away
• bits of rock, sand, and silt caused by the weathering of rocks
• the top layer of the soil
• decaying plant or animal material 

Which of these is an example of erosion

• Light Shinning onto a mountain
• Rain breaking down rock 
• Wind blowing away sediment
• All of the above

The diagrams  shows a natural process that weathers rock.
 Which statement best explains why this process results in weathering?

• frozen water acts as a solute
• water expands when it freezes
• the mass of water increases when it freezes
• frozen water dissolves most types of rock

What is the major cause of weathering and erosion to form canyons?

• wind
• ice
• glaciers
• moving water

How do plants weather rocks?

• during photosynthesis
• when roots grow into cracks of rocks and expand the rock
• when the plant moves water from the roots to the leaves
• Plants don't weather rocks

What is an enormous mass of ice moving over land?

• Ice wedging
• Glacier
• Iceberg
• Dune

fossil fuels react with water producing acid rain that wears minerals away in the rock

• chemical weathering
• mechanical weathering
• erosion
• deposition

the breakdown or decomposition of rock that takes place when minerals change through chemical processes

• chemical weathering
• mechanical weathering
• erosion
• deposition

When overlaying rocks are removed from granite that formed deep beneath Earth’s surface and the pressure decreases, what causes the granite to crack into large, curved sheets?

• joints

• gullies

• valleys

• exfoliation