Weathering: Question Preview (ID: 31782)

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Pebbles and cobbles in a streambed are smooth and rounded as a result of the process of __________.
a) diffusion b) oxidation c) abrasion d) carbonation
The process by which oxygen reacts with iron minerals in rock to form rust is called:
a) carbonation b) oxidation c) solution d) electrolysis
Which of the following is not an example of mechanical weathering?
a) A growing plant root splits a rock. b) A bear kicks a rock over a ledge, causing it to break. c) Frozen water in rock cracks breaks the rock apart. d) Iron minerals in rocks turn brown and crumble.
Water that gets into tiny cracks can cause a rock to break apart because water _________ when it freezes.
a) expands b) contracts c) becomes acidic d) dissolves
he process by which rock minerals are changed by natural processes into new substances is known as:
a) erosion b) chemical weathering c) sedimentation d) mechanical weathering
The breaking apart of rock by physical means is _________.
a) chemical weathering b) mechanical weathering c) erosion d) lithification
Weathering is...
a) the breaking down of rocks and soil into smaller pieces. b) when eroded sediments are dropped in another location, ending the process of erosion. c) the movement of particles away from their source. d) the compression of sediment into rock.
Which of the following is NOT an agent of chemical weathering?
a) acid rain b) glaciers c) oxidation d) carbonic acid
Ice can break down rocks through...
a) abrasion only b) pressure only c) both abrasion and pressure d) neither abrasion nor pressure
Rock can be broken down by...
a) water only. b) wind only. c) water and wind only. d) water, wind, and living things.
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