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UNIT 5 study guide
Unit 5 study guide
14
Environmental Studies
9th Grade
03/14/2013

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Cards

Term
what is mechanical weathering?
Definition
is breaking down of earths rocks, soils and minerals through direct contact with the plants atmosphere
Term
what is frost wedging?
Definition
it is a form of mechanical weathering
Term
which of the following is NOT associated with mechanical weathering?
Definition
reactions with oxygen
Term
what is chemical weathering?
Definition
breaks down the bonds holding the rocks together
Term
which of the following is the result of chemical weathering?
Definition
a rock that has been changed into one or more new compounds
Term
the atmospheric gas that forms a mild acid when dissolved in water is...?
Definition
carbon dioxide
Term
what would cause the inscription on a marble gravestone to become harder and harder to read over time?
Definition
chemical weathering
Term
what climate does chemical weather favor the most?
Definition
it favors the hot and cold climate
Term
what are the major components of soil?
Definition
mineral matter, broken down rock; organic matter; humus; air; water
Term
a soil's texture is determined by?
Definition
particle size
Term
the main source of organic matter in soil is?
Definition
plants
Term
a soil associated with hot and wet tropics is?
Definition
laterite
Term
pedalfer soils contain high amounts of?
Definition
pedalfer is composed of aluminum and iron oxides
Term
the process responsible for moving material down slope under the influence of gravity is called?
Definition
mass movement
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