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WorksheetsWatersheds and Pollution
Total questions: 20
Worksheet time: 20mins
Name
Class
Date
1.
The use of pesticides and fertilizers must be carefully monitored
because of the effect they can have on the environment.
Which of the following is a possible negative effect of the use
of these chemicals on the environment?
because of the effect they can have on the environment.
Which of the following is a possible negative effect of the use
of these chemicals on the environment?
a)
Runoff carries these chemicals into lakes and streams.
b)
Theses chemicals cannot be purchased in large bulk.
c)
These chemicals are expensive to produce.
These chemicals are expensive to produce.
d)
Storage space for these chemicals is limited.
2.
What is a watershed?
a)
Land that collects and channels water froma small body of water to a larger body of water
b)
the shape of the land determined by elevation
c)
A natural stream of water of considerable volume
d)
a river and all its tributaries
3.
Why is gravity a factor in watersheds?
a)
it causes the water to flow away from a watershed
b)
it causes the water to flow down towards a watershed
4.
What is Point Source Pollution (PSP) ?
a)
When you cannot trace the direct source of pollution
b)
When you can trace the point of the source - "pipe to source"
5.
A industrial powerplant dumps its heated wastewater straight from a pipe into a stream. This is an example of -
a)
eutrophic pollution
over-treated drinking water.
over-treated drinking water.
b)
riparian pollution
flooding in the local aquifer.
flooding in the local aquifer.
c)
point source pollution.
d)
nonpointsource pollution.
6.
What is it called when creeks and smaller rivers join together to make a larger river?
a)
River Systems
b)
Topography
c)
Watershed
d)
Groundwater
7.
The health of an ecosystem is directly related to the:
a)
Air quality
b)
Amount of animals in the area
c)
Water quality
d)
Amount of food in the area
8.
Abiotic means:
a)
Living
b)
Dead
c)
Non-living
d)
Water
9.
Biotic means:
a)
Living
b)
Non-living
c)
Man made
d)
Found in nature
10.
What is an area of higher elevation that separates watersheds?
a)
Estuary
b)
Divide
c)
Wetland
d)
Transition zones
11.
Pollutants from a highway enter a stream or creek and travel to a river. River water tested with the pollutant found is called
a)
point source pollution
Available space for crops
Available space for crops
b)
nonpoint source pollution.
c)
eutrophic pollution
d)
riparian pollution
12.
Farmers can best reduce negative effects on the water quality of nearby streams and lakes by planting crops that —
a)
produce less oxygen
b)
produce less carbon dioxide
c)
need less fertilizer
d)
need less solar energy
13.
The movement of colored water through the gravel best models —
a)
condensation of water vapor
b)
surface runoff of precipitation
c)
conservation of water
d)
pollution of groundwater
14.
How do the industrial, agricultural, and residential activities of humans most likely affect the
groundwater in the area?
a)
The activities prevent most of the water from evaporating into the atmosphere.
b)
Pollutants from the activities percolate through the soil and enter the water table.
c)
The activities replace the groundwater used.
d)
All of the above
15.
How does the agricultural activity most likely affect the surface water of the area?
a)
Excess crop fertilizer is carried by runoff into the river, causing excess growth of water plants.
b)
Excess crop material accumulates on the riverbanks, slowing the movement of the river water
c)
Crops reduce erosion, increasing the amount of soil entering the river.
d)
Crops absorb pure water from soil, causing the remaining water to contain more salt.
16.
When an area is experiencing drought, humans may excessively pump groundwater out of
aquifers like this one. All of the following are effects of this excessive pumping EXCEPT —
a)
groundwater depleting.
b)
the water table rising.
c)
soil collapsing.
d)
water quality decreasing.
17.
The table shows the amount of water in a particular groundwater aquifer over ten years.
A new human community was built near the aquifer at some point in the last ten years. In
which year was the community most likely built?
a)
year 3
b)
year 5
c)
year 7
d)
year 9
18.
A company known as Arten Industries is wanting to build a factory in the watershed that is
pictured.
The company wants to limit the ecological impact it has on surrounding areas. What would
be the worst location for the factory?
a)
At the top of the river.
b)
Away from the river.
c)
At the middle of the river.
d)
At the bottom of the river.
19.
As the map shows, there are multiple drainage basins in Texas.
Ft. Worth and Dallas are in the same drainage basin. What is the most likely reason that the
water in the Trinity River is dirtier in Houston than it is in Dallas?
a)
Ocean pollutants are entering the river.
b)
Pollutants are entering from other drainage basins.
c)
The river basin picks up more human pollutants.
d)
The water goes through a salt dome and get more polluted.
20.
John was changing the oil in his truck. He dumped the used oil around a fence post to keep
weeds from growing. John didn't know it, but he was hurting the environment because the oil
a)
rots the base of the fence post and attracts harmful insects
b)
goes deep into the ground and pollutes the groundwater
c)
kills weeds and they are an important part of the environment
d)
attracts more insects that will take over his yard
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