WorksheetsUnit 2, Part 1
Total questions: 20
Worksheet time: 10mins
Which of the following affects the RATE at which exposed rock weathers.
CLIMATE of the region
COMPOSITION of the rock
SURFACE AREA of the rock
ALL of these
CHEMICAL weathering plays the GREATEST role in...
arctic regions
deserts
rain forests
If the prevailing wind is blowing to the NORTH, which direction will the SAND DUNE move?
NORTH
SOUTH
EAST or WEST, perpendicular to the wind
NONE of these.
An EPHEMERAL stream carries water...
all the time at the same level.
all the time at varying levels.
only when there is rain or snowmelt from the mountains.
only after major seismic or volcanic events.
The most important cause of CHEMICAL weathering is...
freeze-thaw cycles
fluids carrying sand, rocks, etc.
volcanic eruptions
water
Mrs. Smith did some traveling over the summer. She visited monuments in both Juneau, Alaska and Hilo, Hawaii. She noticed that the monuments, both made of Indiana limestone, looked slightly different. The monument in the Hawaii appeared to have a much higher degree of weathering than the monument in Maine. Mrs. Summers knows that both cities have the same average rainfall over the year, so what could account for the difference she saw?
lower RAINFALL in Alaska causes SLOWER weathering
higher RAINFALL in Hawaii causes FASTER weathering
higher TEMPERATURES in Hawaii cause FASTER weathering
NONE of these.
Earthworms, bacteria, and other living things are components of SOIL.
True.
False.
Which of the following is NOT a form of MECHANICAL weathering...?
abrasion
frost wedging
spheroidal weathering
unloading
The STEEPNESS of a slope and the amount of groundcover will affect the rate that soil erodes from a hillside.
True.
False.
Which atmospheric gas combines with rainwater to form a MILD acid?
carbon dioxide
nitrogen
sulfur
None of these.
Which of these is FASTEST type of mass movement?
creep
a rockfall/rockslide
a slump
This results from the loss of topsoil due to the effects of wind and can produce desert pavement.
abrasion
concretion
deflation
inflation
The process that occurs when forces break rock into smaller pieces WITHOUT altering the rock's chemical composition is called ____________.
chemical weathering
mechanical weathering
spheroidal weathering
stormy weathering
The factor which has the greatest effect on soil formation is...
climate
time
type of rock
all of these are EQUAL.
The downward movement of a block of material along a curved surface is called...
creep.
a rockslide.
a rockfall.
a slump.
Creep is the term...
for rock falling through the air from a over-steepened slope.
for an entire unit of rock moving along a flat, inclined surface.
for the slow movement of a block of material due to alternating freezing and thawing.
for the downward movement of a block of material along a curved surface.
When layers of rock in the same area weather at varying rates.
differential weathering
exfoliation
spheroidal weathering
unloading
Spheroidal weathering is the gradual rounding of corners and edges due to chemical weathering on surfaces of rock.
True.
False.
In the DESERT, windblown sand can CUT and POLISH exposed rock surfaces in a process known as...
abrasion.
deflation.
exfoliation.
unloading.
UNLOADING is the process where a batholith is exposed at the Earth's surface and the outermost portion of that rock body expands faster than the innermost rock due to the removal of the of overlying rock and soil.
True.
False.
