MSCI 112 FINAL EXAM #2 QUESTIONS VERIFIED
ANSWERS
Which of the following rock types dissolves most rapidly in a hot, humid climate? -
answers - limestone
Weathering produces the sediments and dissolved substances, while erosion? -
answers - removes these materials by natural processes such as wind and rivers/water
In a cold, arid environment with little sediment cover, the weathering rates of rocks is
_________ - answers - decreased
What is carbonic acid? - answers - an acid formed by dissolving carbon dioxide in
water.
Hydrolysis - answers - is a type of chemical weathering that tranforms unstable minerals
such as feldspar to clay minerals
Frost wedging is an example of? - answers - physical weathering
Briefly, what role does soil play in chemical weathering of rocks? - answers - with the
presence of soil chemical weathering is increased b/c soil holds water.
Which of the following minerals will weather the slowest? - answers - quartz - b/c it's
very hard
Crushing and abrasion that occures at the base of a cliff due to a falling rock is an
example of? - answers - physical/mechanical weathering
The process by which large chunks of earth materials collapse and move down-slope
is? - answers - mass wasting
A steep, wet slope made up of unconsolidated sand, silt, soil, and rock fragments has _
_______ slope stability. - answers - a low
Which of the following is the slowest type of mass movement? - answers - creep
Siliciclastic sediments result from the breakdown of? - answers - rock
Most shells of marine organisms are composed of? - answers - calcium carbonate
Chemical and biological sediments generally form? - answers - at or near their place of
composition
ANSWERS
Which of the following rock types dissolves most rapidly in a hot, humid climate? -
answers - limestone
Weathering produces the sediments and dissolved substances, while erosion? -
answers - removes these materials by natural processes such as wind and rivers/water
In a cold, arid environment with little sediment cover, the weathering rates of rocks is
_________ - answers - decreased
What is carbonic acid? - answers - an acid formed by dissolving carbon dioxide in
water.
Hydrolysis - answers - is a type of chemical weathering that tranforms unstable minerals
such as feldspar to clay minerals
Frost wedging is an example of? - answers - physical weathering
Briefly, what role does soil play in chemical weathering of rocks? - answers - with the
presence of soil chemical weathering is increased b/c soil holds water.
Which of the following minerals will weather the slowest? - answers - quartz - b/c it's
very hard
Crushing and abrasion that occures at the base of a cliff due to a falling rock is an
example of? - answers - physical/mechanical weathering
The process by which large chunks of earth materials collapse and move down-slope
is? - answers - mass wasting
A steep, wet slope made up of unconsolidated sand, silt, soil, and rock fragments has _
_______ slope stability. - answers - a low
Which of the following is the slowest type of mass movement? - answers - creep
Siliciclastic sediments result from the breakdown of? - answers - rock
Most shells of marine organisms are composed of? - answers - calcium carbonate
Chemical and biological sediments generally form? - answers - at or near their place of
composition
