Weathering

25 July 2022
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45 test answers

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question
in the process of frost wedging , how does ice cause cracks in rocks to become larger?
answer
Ice expands when it freezes, pushing the rocks apart
question
is frost wedging more important in a cold or warm climate?
answer
cold
question
3 different ways rocks can be worn down by abrasion?
answer
glaciers can drag rocks over bedrock , wind carrying sand can wear down rock , and rocks can be worn away in rivers.
question
how can a large block of granite form like layers of an onion?
answer
as granite rises to the surface , it expands and forms cracks parallel to the surface
question
what type of rock is affected by dissolving, and features what result?
answer
affects limestone. this can result in limestones pavements , underground rivers, caves, sinkholes , and oddly shaped mountains
question
how does clay formation affect a rock ?
answer
some minerals transform into clay, the clay absorbs the water expands and causes the rock to crumble
question
what is needed for a rock to rust?
answer
a rock needs iron
question
pressure release has what term
answer
exfoliation
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dissolution has what term
answer
carbonation
question
clay formation has what term
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hydrolysis
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rusting has what term
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oxidation
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salt weathering
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mechanical weathering that occurs when crystals grow
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heat expansion
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mechanical weathering that is common in desert climates
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root wedging
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mechanical weathering that is caused by the growth of trees
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lichen growth
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chemical weathering that from chemicals produced by algae and fungi
question
frost wedging is
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mechanical weathering
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abrasion is
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mechanical weathering
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pressure release is
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mechanical weathering
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dissolving is
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chemical weathering
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clay formation is
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chemical weathering
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rusting is
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chemical weathering
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mechanical weathering include
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frost wedging, abrasion, pressure release , salt weathering, heat expansion, root wedging
question
chemical weathering includes
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dissolving , clay formation, rusting, and lichen growth
question
which rock types tend to weather into rounded shapes?
answer
granite and sandstone
question
which rock weathers into caves and lumpy hills
answer
limestone
question
which rock weathers most quickly?
answer
shale
question
which rock weathers most slowly?
answer
granite
question
what types of weathering affect granite?
answer
frost wedging , clay formations and other
question
what types of weathering affect sandstone?
answer
frost wedging, clay formation and other
question
what types of weathering affect limestone?
answer
frost wedging , dissolving and other
question
what types of weather affect shale?
answer
frost wedging, clay formation, and other
question
the climate type of frost wedging
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cold and wet
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climate type of clay formation
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hot and wet
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climate type for dissolving
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cold and wet
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effect of temperature on frost wedging
answer
fastest at low temperatures
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effect of temp on clay formation
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fastest at high temps
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what is weathering?
answer
the wearing away the surface of rock, soil, and minerals into smaller pieces
question
how is weathering beneficial?
answer
it shapes and erodes the earths surface
question
difference between mechanical and chemical weathering?
answer
mechanical involves the breakage of rocks, but stays the same, while chemical alters the rock and changes it forever into something new
question
the same between chemical and mechanical?
answer
they both break down rocks
question
how does the amount of rainfall influence weathering?
answer
it can dampen the minerals making it vulnerable to crumble easier.
question
What is carrying capacity?
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is the ability for something to hold something within it, and how much something can hold
question
water can carry more minerals if it's fast moving or slow moving?
answer
fast moving
question
ways to control erosion ?
answer
protect the soil surface with some sort of cover
question
why would we not want to control erosion
answer
when you mess with mother nature usually there's a consequence, and maybe there is a reasoning to support the ecosystem through erosion