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38 questions
A farmer has a steeply sloping pasture that is eroding. Which is the BEST option to stop the immediate erosion of the topsoil?
Increase the amount of vegetation on the sloping pasture.
Plant trees and shrubs at the bottom of the sloping pasture.
Increase the soil thickness by adding five inches of sandy soil.
Increase the organic content of the topsoil by adding earthworms.
Rocks can be classified many different ways, including as igneous, metamorphic, and sedimentary. This classification is based on the
origin of the rocks.
use of the rocks.
size of the rocks.
hardness of the rocks.
The sediments found in a riverbed are MOST likely a result of which action on nearby rock?
heat
faulting
pressure
weathering
Most sedimentary rock is made from sediments of other rock. Which of these processes would the sediments MOST likely go through to form sedimentary rock?
compaction and cementation
folding and recrystallization
melting and solidifying
heating and pressure
Why are fossils rarely found in metamorphic or igneous rock?
Chemicals toxic to living organisms are released during formation of these rocks.
Heat and pressure are great enough to destroy the structure of fossils found in these rocks.
Decay of radioactive isotopes changes the fossils into a different rock structure.
Intense magnetic fields found where these rocks form keep organisms from living there.
Coal is solid rock that began as organic material that was deposited in a swamp. The formation of coal suggests that
coal is made mostly of skeletal remains of animals.
coal is formed from magma that has solidified over time.
it quickly becomes petrified when water is removed.
geologic processes continue over millions of years.
In order for rocks to be classified as igneous, the rocks must
solidify at the surface of Earth.
be eroded and deposited in layers.
be formed from magma.
change form when pressure is applied.
According to the rock cycle, when liquid magma cools into a solid, what is formed?
lava
glaciers
igneous rock
metamorphic rock
The Sphinx in Egypt has been changed by abrasive desert sands. Which process has MOST likely helped in breaking down the surface of the Sphinx?
cementation
deposition
faulting
weathering
A group of students is taking a hike along a stream channel. One student picks up a rock from the stream and notices that the rock is very smooth and round. Which type of weathering MOST likely shaped the rock?
abrasion
exfoliation
fracturing
oxidation
The roots of a plant can grow through cracks in a driveway, eventually causing the driveway to break. Which kind of process would be taking place?
erosion
exfoliation
weathering
sedimentation
Fences are put along some beaches. For which reason are the fences MOST likely placed along beaches?
to increase water erosion
to prevent wind erosion
to increase weathering
to prevent deposition
In what way can forest fires affect the lithosphere?
increasing soil erosion
causing air pollution
increasing seismic activity
causing violent dust storms
What is the MOST likely cause of the shape of the rock formation in the photograph?
weathering
volcanic action
earthquake compaction
tectonic plate movement
Two processes are involved in the formation of a sand dune. Which two processes BEST describe how a sand dune forms?
wind erosion then deposition
plate movement then deposition
wind erosion then water erosion
water erosion then plate movement
Which of these BEST describes how the surface of a beach is formed?
mechanical weathering
chemical weathering
mass movement
volcanic eruption
Which is more likey to prevent mass-movement events?
constructing buildings in stream drainage paths
clear-cutting trees from the side of a mountain
paving roads next to sloping hills
contour plowing of crop areas
How does the replacement of large land areas with concrete and asphalt affect the land?
It changes the bedrock of underlying layers of soil.
It prevents the dynamics of the rock cycle.
It increases the amount of groundwater in porous rock.
It increases erosion of sediments by increasing runoff.
Which one of these is farming methods that does NOT conserve soil?
Clear Cutting Forest
Terracing
Better Grazing practices
Crop Rotation
Glaciers are best defined as...
A very hard white rock
A giant ice cube
A giant slow-moving river of ice
A small continent
Which is a type of Chemical Weathering?
Ice-Wedging
Abrasion
Plant root growth
Oxidation
Formation of soil is primarily a result of
Stream erosion and mass movement
Stream deposition and run-off
Precipitation and wind erosion
Weathering and biological activity
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