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Weathering

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Regents Earth Science: Weathering and Soil Unit quick review

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Questions 10

Answers

1
Which is an example of chemical weathering?
expanding plant roots crack and split a rock
wave action makes beach rocks smooth and round
a rock breaks into pieces as it tumbles down a hill
a bicycle left in the rain develops rust spots
2
In hot, wet climates bedrock rapidly weathers into soil because water
expands when it freezes
reacts with many minerals
cools rocks as it evaportes
infiltrates the porous sediment
3
Which factor has the greatest influence on weathering rate of bedrock at Earth surface?
age of the bedrock
burrowing animals
local weather and climate
moss plants and lichens
4
Identify water process A, which produces water droplets.
condentation
transpiration
precipitation
evaporation
5
Which soil particle is the smallest in size?
sand
clay
pebble
silt
6
Which soil is likely to be most porous?
soil consisting of cobbles and sand
soil consisting of clay and sand
soil consisting of cobbles, sand, and clay
soil consisting of sand only
7
Which is the best example of physical weathering?
the transportation of sediment in a stream
the formation of a sandbar along the side of a stream
cracking of rock caused by the freezing/thawing of water
the reaction of limestone with acid rainwater
8
As particle size decreases, permeability of the sediment will
increase
stay the same
decrease
9
A soil is mostly porous if it is composed of
poorly sorted, tightly packed particles
well sorted, loosely packed
well sorted, tightly packed particles
poorly sorted, loosely packed particles
10
How does weathering affect rocks?
weathering makes rock harder
weathering weakens rock
weathering compacts sediments to form sedimentary rock
weathering causing the mineral grains to increase in size