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WorksheetsCatastrophic Events, WED, GWSW, Review
Total questions: 14
Worksheet time: 7mins
Which statement best explains why soil in areas cleared out of vegetation (plants) becomes washed out?
Rock cycle activity decreases in soil that has no vegetation.
Rain and wind easily erode soil that has no vegetation.
Microbe activity increases in soil that has no vegetation.
Sunlight destroys nutrients in soil that has no vegetation.
When runoff crosses the land, it picks up fertilizer that have been used on crops and lawns. These contaminants will eventually enter a lake, river or stream, which may lead to…
A. The earth’s surface to sink
A. The water in an aquifer to drop
A. Harmful rapid growth of algae
A. Cleaner water for drinking and bathing
The image to the right shows rusting barrels floating in a shallow river water. How will the rusting barrels in this stream affect the surface water in the watershed?
The barrels will not affect the surface water that reaches the river
The barrels will change the course of the surface water that reaches the river
The barrel will filter the surface water that reaches the river
A. The barrels will pollute the surface water that reaches the river
Which of the following maps, each of an area of approximately 300 square kilometers, best shows the damage caused by a tornado?
F
G
H
J
The Blackland Prairie ecoregion of Texas has many exposed boulders that are smooth and rounded. What feature of this area caused the boulders to take on these characteristics?
Hurricane Activity
Wind-blown sand
Severe drought
deep and rapid rivers
What type of erosion is in the Trans Pecos (desert) region?
water erosion
wave erosion
wind erosion
river erosion
The Llano Uplift is a series of granitic hills that occur within the Edwards Plateau ecoregion of Texas. These hills are dome-shaped due to a slow process called exfoliation where sheets of rock are broken off a larger rock. What type of process results in exfoliation?
deposition
erosion by wind
erosion by water
weathering
The Trans-Pecos ecoregion of Texas is part of the Chihuahuan desert and is the most mountainous and dry portion of the state. What feature of this area causes erosion of this area?
Hurricane activity
Wind-blown sand
severe flooding
deep and rapid rivers
The illustration provided shows a river and four cities on that river. When the water from the river was sampled at location X, it was determined to be polluted with various chemicals. What would be the most likely source for this pollution?
City 1 and City 2
City 2 and City 3
City 3 and City 4
City 1 and City 4
Wildfires can be one of the most destructive forces on our planet. Millions of acres of forest lands are lost annually as a result. Which of the following is NOT a way in which wildfires can affect this type of ecosystem?
loss of habitat for animals
loss of vegetation for several years
the land is covered in rock
allows for new plants to begin to grow
How are tsunamis created in the ocean?
hurricanes in the ocean
tornadoes in the ocean
storm in the ocean
earthquakes in the ocean
Point Source pollution is when...
The source of the pollution is apparent
The source of the pollution is not apparent
Non-Point Source pollution is when...
the source of the pollution is apparent
the source of the pollution is not apparent
What do floodplains, sandbars, and river deltas have in common?
They've all been formed by water erosion
They've all been formed by glacial erosion
They've all been formed by wind erosion
They've all been formed by sandblasting
