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Water + Exam 3 review
The Keystone XL pipeline
Pollution such as nutrient runoff from erosion or crop fertilizer is
Water + Exam 3 review
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Answers
1
Pollution such as nutrient runoff from erosion or crop fertilizer is
point source pollution
non point source pollution
2
The Keystone XL pipeline
Will create only 35 permanent positions
Does not cross any sensitive ecosystems
will create over 3,900 permanent jobs
does not have the possibility of leaks
3
We do not have enough water available to provide for everyone
false
true
4
What is the single largest irrigated crop in the US?
lawns
rice
Wheat
Corn
5
An underground collection of water
tidal pools
an aquifer
wetlands
none of the above
6
Which of the following is the definition of watershed?
An area of land where all water drains to a central point like a river or
An area of water that is polluted by human activities
An area on a mountain that stores water
A man-made structure that holds water
7
What causes increased algal growth?
increased snail population
increased otter population
none of the above
nutrient runoff
8
How do trees remove CO2 from the atmosphere?
through deforestation
through respiration
through photosynthesis
through evapotranspiration
9
The Iriomote cat is an example of a species vulnerable to extinction due to
climate change
slow reproductive rate
fixed migratory patterns
narrow distribution
10
What is at the base of the trophic pyramid?
primary consumers
endemic species
anything that does photosynthesis
tertiary consumers
11
Freshwater is __% of Earths surface
15%
71%
3%
67%
12
Warm, shallow, nutrient rich water
intertidal zone
estaury
coastal zones
wetlands
13
How much have big-fish stocks fallen since 1950?
80%
90%
25%
55%
14
A wetland was drained 50 years ago. After farming was stopped there, the area is made into a grassland. This shows
ecological reconciliation
economic restoration
ecological rehabilitation
15
Water is more likely to infiltrate the ground when
there are impervious surfaces
there is lots of plant growth
there are large amounts of clay
there is little vegetation
16
Marine water is __% of Earths surface
3%
71%
15%
67%
17
What species of animal pollinates agave, the single plant species from which Mexican tequila is produced?
Lesser Long-Nosed bat
Black-footed ferret
Monarch butterflies
Native honeybees
18
What US President enacted the Endangered Species Act?
Ronald Reagan
Bill Clinton
Richard Nixon
Jimmy Carter
19
If you plant a pollinator garden next to your office building, what is this an example of?
Ecological restoration
Ecological reconciliation
Ecological rehabilitation
20
What does brackish mean?
mix of fresh and salt water
high algal populations
very clear waters
none of the above
21
In a mutualism between two species
both species benefit
One species benefits
Neither species benefit nor is harmed
One species is harmed
22
Eutrophic lakes are very clear, while oligotrophic surfaces are typically green
true
false
23
The bats in the largest bat colony in the world eat ____ tons of insects every night.
1 ton
100 tons
75 tons
10 tons
24
What is the ultimate cause of the dead zone in the Gulf of Mexico?
excess nutrients from agriculture
Loss of coral reefs
invasive species
Coastal Development
25
Which of the following is a cause of saltwater intrusion into freshwater aquifers?
Impervious surfaces
Increase in precipitation in the watershed
lowering of the freshwater aquifer water table
salinization of the watershed
