EH Investigation 2 Question Preview (ID: 47562)


Weathering And Erosion. TEACHERS: click here for quick copy question ID numbers.

Pebbles and cobbles in a streambed are smooth and rounded as a result of the process of __________.
a) diffusion
b) oxidation
c) carbonation
d) abrasion

Weathering is...
a) the movement of particles away from their source.
b) when eroded sediments are dropped in another location, ending the process of erosion.
c) the breaking down of rocks and soil into smaller pieces.
d) the compression of sediment into rock.

Erosion is...
a) the movement of particles away from their source.
b) when eroded sediments are dropped in another location, ending the process of erosion.
c) the breaking down of rocks and soil into smaller pieces.
d) the compression of sediment into rock.

Weathering is the breaking down of rock into ___________.
a) boulders
b) sediment
c) mountains
d) ice

_________is the movement of sediment from one place to another.
a) Erosion
b) Deposition
c) Weathering
d) All of the above

The dropping off of sediments in a new place is called __________.
a) Erosion
b) Deposition
c) Weathering
d) All of the above

What is the dark, organic material that helps make soil fertile?
a) Humus
b) Horizons
c) Bedrock
d) None of these options

What are the different layers of the soil profile called?
a) Horizons
b) Profile
c) Topsoil
d) Bedrock

What is a primary ingredient of humus?
a) Rocks
b) Decayed organic material
c) Clay and silt
d) Gravel

How do plants weather rocks?
a) when the leaves dissolve the rocks
b) when roots grow into cracks of rocks and expand the rock
c) when the plant moves water from the roots to the leaves
d) None of these options

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