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Factors Impacting Earth Systems
Test Description: Weathering, watersheds,pollution
Instructions: Answer all questions to get your test result.
1) Which of the following is an example of a cause of chemical weathering?
A
frost wedging
B
lichens
C
wind
D
root pry
2) Which is an example of erosion?
A
a river drops sediment as it slows down
B
waves crash to the shore and carry sand back out with them
C
a root grows up beneath a sidewalk-breaking it
D
a sand dune is created
3) Iron oxide forming on a rock breaks off pieces
A
mechanical weathering
B
chemical weathering
4) Which is NOT one of the four architects of nature?
A
rocks
B
gravity
C
wind
D
water
5) Which environment would be most affected by wind erosion?
A
grassland
B
desert
C
deciduous forest
D
tropical rain forest
6) When a river flows into a larger body of water, sediments get dropped as the river slows down. This forms a landform call a-
A
watershed
B
aluvial fan
C
delta
D
plateau
7) Which is not one of the main components of the water cycle?
A
precipitation
B
perspiration
C
evaporation
D
condensation
8) The area of land that drains and supplies all of the water for a particular water source is a -
A
delta
B
aquifer
C
well
D
watershed
9) a measure of the ability of an Earth substance to let water pass through it=
A
percolation
B
permeability
C
porosity
D
pollution
10) What makes water flow from higher to lower regions?
A
erosion
B
wind
C
gravity
D
permeability
11) The measure of the amount of spaces between pieces of soil, rock. gravel. etc.
A
permeability
B
porosity
C
pollution
D
infiltration
12) Can a particular piece of land be part of more than one watershed?
A
It depends on how much rain it gets
B
Yes
C
Land has nothing to do with watersheds.
D
No
13) If you cannot easily trace or identify where a type of pollution came from it is called-
A
non point source pollution
B
solution pollution
C
Priority pollution
D
point source pollution
14) Can dirt be considered a pollutant?
A
No-dirt gets mixed with water all the time
B
Yes-too much dirt can harm an aquatic ecosystem
15) What is a way that humans can cause erosion to speed up?
A
clearing land of trees and grasses
B
planting trees
C
creating pollution
D
People do not affect erosion at all-it is an Earth process.
16) If we use too much water in an area-what is the best example of something that could happen?
A
Aquifers would turn into springs
B
pollution would become more common
C
water levels in aquifers would decrease and wells could become dry
D
watersheds would disappear
17) About how much of the Earth's water is freshwater?
A
3%
B
97%
C
1.5%
D
67%
18) How can runoff negatively affect water sources?
A
by speeding up the water cycle
B
by carrying more water to a pond or river
C
by blocking a river
D
by carring pollution into a pond or river
19) The largest watershed in the United States is-
A
The Mississippi River Watershed
B
The Ohio River Watershed
C
The Colorado River Watershed
D
The Rio Grande River Watershed
20) water that fills the cracks and spaces in underground soil and rock layers is called-
A
infiltration
B
precipitation
C
groundwater
D
a lake
*select an answer for all questions
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