Soil
soil
Mountains, canyons, reefs, and islands are called?
landforms
small bits of weathered material is called?
sediment
the dropping of sediment is called?
deposition
large amount of snow and ice suddenly moves down a mountain is called an?
avalanche
decayed plants and animal material in soil is called?
humus
the process of breaking rocks into smaller pieces is called
weathering
the moving of sediment from one place to another is called?
erosion
the area of sediment that builds up at the mouth of a river is called?
a delta
glaciers can pick up rocks and _______.
sediments
the layer that contains humus and helps plants grow is called?
topsoil
the process of water in and around rocks and soil freezing and expanding the rocks is called?
frost weathering
a glacier
sediment that is deposited at the mouth of river makes the mouth of a river______.
shallow
a landslide Is on kind of sudden erosion caused by _______.
gravity
a solid rock that has not been weathered is called?
bedrock
the process of wearing away rocks by friction
abrasion
small hills caused by glaciers are called?
moraines
two types of landforms are called dunes and _______.
mountains
erosion happens slowly and _______.
quickly
the layer that is made mostly of coarse rocks that have been weathered is called?
subsoil
Fill in the blank. Volcanoes and __________, can push land ________.
earthquakes; upward
the rapid downhill movement of a large amount of soil and rocks are called?
landslides
the three sizes of weathered rock found in soil are sand, silt, and _____.
clay
_______ shaped valleys where ponds and lakes form can be caused by glaciers.
U-shaped