Weathering and Soil
What is weathering?
breaking rocks into pieces
What is erosion?
when rocks or sediment are carried somewhere
What is deposition?
What is a glacier?
layers of snow that build up and freeze into a giant block of ice
What is the C horizon of soil?
bedrock
Which types of mass movement occurs rapidly when a single mass of soil and rock suddenly slip downhill?
slump
What is a rill?
A water filled grove in the soil.
How do waves cause erosion?
How does the A horizon of soil form?
How are erosion and deposition alike?
Both change Earth's surface over time.
Sediments get deposited in an alluvial fan because ___________.
a stream deposits sediment at the bottom of a hill.
Which is faster wave erosion or glacial erosion?
wave erosion
How does acid rain cause weathering?
by dissolving rock
Deposition by _________ causes sand _________ to form.
Deposition by wind causes sand dunes to form.
Which of the following processes causes sinkholes to form?
erosion of limestone by groundwater
Glaciers erode Earth's surface through the processes of ___________ and ___________.
Glaciers erode Earth's surface through the processes of abrasion and plucking.
Mechanical weathering breaks some limestone into pieces. What effect would this have on chemical weathering of limestone?
A scientist observes that over several decades, fence posts placed in soil on a slope became tilted. Have erosion, deposition, or both occurred in this area?
Both erosion and deposition by gravity occurred. Gravity causes creep, the very slow downhill mass movement of rock and soil. Creep happens very slowly and causes objects to tilt.
What is the correct order of stream formation from raindrops to rivers?
raindrops, rills, gullies, streams, river, tributary
How does longshore drift affect Earth's surface?
Sediment moves down a beach with the current.