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30 Cards in this Set

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wearing away or grinding by friction
abrasion
process of disolving
dissolution
chemical reaction involving ions in water
hydrolysis
chemical reaction in which minerals are weakened by oxygen
oxidation
breakdown and change of rocks over time
weathering
_____ and ______ are the most common agents of physical weathering.
heat,water
____,____, and ____ are most common types of chemical weathering.
oxidation, hydrolysis, and dissolution
biological weathering can either be ____ or _____
physical, chemical
Physical weathering may happen because of temperature change. If the temperature rises, the minerals in rock may _____and cause cracks and breaks.
expand
carbonic acid _____
dissolves limestone and other rocks
How does the Sun contribute to physical weathering?
minerals in rock heat and expand at different rates, which causes rock to break
example of phys weathering
abrasion
Silicate rocks are weathered by _____ into the clay minerals.
hydrolysis
triangular deposition of fine, fertile soil at the mouth of a river
delta
placement of weathered rock and sediment by erosion
deposition
transport and deposition of weathered rock
erosion
substance which enables the transport of weathered rock and sediment
medium
erosion begins with ____, and ends with ____
detachment, depostion
Detachment and transport are ______ processes.
destructive
deposition is a ______ process
constructive
during deposition, sediment _____
is dropped off at new locations
wind erosion causes _____
topsoil removal
layer of distinct soil
horizon
top layer of mineral and organic material on earth's surface
soil
arrangements of horizons in a soil sample
soil profile
elevation and slope of land
topography
order of soil layers
oabc
most important climatic factors in soil formation
temperature, moisture
fertile soil is most likely in ___ to ___ incline
mod, low
essential elements in fertile soil
ca, mg, k, na