questions
what is the difference between a delta and an alluvial fan.
a delta is in water
a alluvial fan is on mountains
what is exfoliation
rocks seperate into thin layers or slabs- mechanical weathering
unsorted sediments that drop from a glacier when it melts.
till
what agent of erosion is involved with sand blasting?
wind
what is on the A- Horizon.
top soil.
2 conditions for chemical weathering.
Moist and warm.
what is mass wasting
transportation of soil and rock downward by gravity alone.
frost wedging.
water freezes in cracks and pores of rock and forces them apart, breaking them into smaller pieces.
continental glaciers
ice sheets that cover most of a continent.
what is in Horizon B
subsoil.
4 conditions for erosion
Water, glacier ,wind and gravity
what is a fjord
a lake-like body or water.
what with erosion to move sediment from one place to another?
Deposition
what kind of water carries the most sediment.
Turbulent water
what is in Horizon C
Brocken and weathered pieces of bedrock.
4 types of mass wasting?
Landslides, mudflows, avalanche, rockslides
what is a moraine
a ridge of glacial till left behind when a glacier melts.
streams deposit sediments it does it in an orderly way called.
sorting
erosion of exposed rock by wind-driven sand; similar to artificial sand blasting.
abrasion
what is the last Horizon.
Bedrock
2 types of weathering uses trees and animals to crack and weather rocks ?
Biological
Mechanical Weathering
what is plucking
ice water fills in cracks and rips up rocks as the glacier moves.
The process in which the environment breaks down rocks into smaller pieces.
weathering
what agent of erosion is involved with a V shaped valley?
Water erosion
(turbulent (rough) water)
can soil grow quickly or slowly depending on the conditions that weather rocks.