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WorksheetsWeathering, Soil, & Erosion
Total questions: 20
Worksheet time: 10mins
Which substance is a mixture of organic matter & weathered rock?
Schist
Soil
Limestone
Granite
What is located beneath soil layers?
Bedrock
Humus
Lava
Tundra
Which layer of soil has the most humus?
A horizon
Bedrock
Subsoil
Regolith
Which best describes forest soil?
More clay in the humus layer than in deeper layers
More rock fragments in the humus layer than in deeper layers
More sand-sized particles in the humus layer than in deeper layers
More organic matter in the humus layer than in deeper layers
Which layer in a soil profile would be most affected by weathering & erosion
C horizon
B horizon
R horizon
A horizon
The 4 agents of erosion are________
air, fire, water, & metamorphism
wind, water, gravity, & ice
topographic, sedimentary, igneous, & deposition
igneous, sedimentary, metamorphic, & gravity
The 2 types of weathering are _________
alpha & beta
physical & conventional
conduction & convection
chemical & physical
What most likely would cause a sinkhole to form?
Collapse of the roof of a limestone cave
Abrupt movement of two tectonic plates
Thinning of topsoil due to forest clearing
Impact of meteorite striking the surface of Earth
The Valley & Ridge province of VA has karst geologic features. Which best describes karst features?
Physical weathering of igneous rocks
Chemical weathering of metamorphic rocks
Physical weathering of foliated gneiss rock layers
Chemical weathering of limestone rock layers
The main reason for one crustal plate sinking below another crustal plate at a subduction zone is __________
gravitational force differences between the crustal plates
density differences between the crustal plates
magnetic anomalies between the crustal plates
frictional force differences between the crustal plates
A mid oceanic ridge, like the one found in the middle of the Atlantic Ocean is ________
a continental zone
a subduction zone
a divergent plate boundary
a convergent plate boundary
In Virginia, karst topography is found in ________
the Coastal province
All provinces
the Valley & Ridge province
the Piedmont province
Under which condition would a lowering of the water table most likely occur?
Extended drought over the recharge zone
Decreased runoff due to the planting of grass
Slow evaporation of heavy rainfall
Icecaps expand and cause lower sea levels
Which of the following is most true about the likelihood of flooding in an area?
Flooding is less likely where there are more impermeable surfaces
Flooding is more likely in an area where the soil has high porosity
Flooding is more likely in an area where the soil has low permeability
Flooding is more likely in an area where the soil has high permeability
Which describes the area immediately below a water table?
Zone of saturation
Capillary zone
Zone of aeration
Recharge zone
Rivers, springs, & aquifers are all _________
frozen in winter
located above ground
sources of fresh water
human-made structures
A triangle-shaped deposit of sediment at the mouth of a river is called a/an ___________
oxbow lake
meander
tributary
delta
Most of the Earth's fresh water is found in __________
the oceans
lakes & rivers
masses of ice near the North & South poles
underground rock & soil layers
In Virginia, the "Fall Line" separates which 2 provinces?
Piedmont & Blue Ridge
Coastal Plain & Valley and Ridge
Piedmont & Appalachian Plateau
Coastal Plain & Piedmont
Which natural resource found in VA is a common source of energy?
Zinc
Limestone
Coal
Bauxite
