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WorksheetsUnit 8: Watersheds TEST CORRECTIONS
Total questions: 19
Worksheet time: 38mins
Wastewater that goes down sinks, drains, and toilets from homes, schools, and businesses within the city limits goes to a wastewater treatment plant. At this location, the wastewater is filtered, cleaned, and disinfected. What happens to the treated water next?
It is released into a nearby creek or river.
It is pumped underground into aquifers.
It is bottled and sold in stores.
It is pumped directly back to local homes, schools, and businesses
The graph provided shows the sources of ocean pollution. Which two resources together can impact the ocean system the most?
Air pollutants and oil spills
Land runoff and air pollutants
Oil spills from shipping and litter dumped into the ocean
Land runoff and oil spills
Students designed an experiment to study where water drains after the sprinkler system is used to maintain the football field. They attached a container that added red dye to the water before it sprayed onto the field. Students placed water collection containers in many places near the field.
Which location could the students place a water collection container to determine the effect of runoff from the football field?
In the ground near the sprinkler
In a gutter that flows to a nearby pond
Directly under the sprinkler
Suspended directly above the sprinkler
Landfills are a way to manage trash by burying the trash underground. Modern landfills have a bottom layer of thick clay covered with a plastic liner. On top of the plastic liner, the landfill has pipes with holes that flow to collection tanks.
If a landfill lacked the clay, plastic, and pipes, how would the environment most likely be affected?
Rainwater would not absorb into the ground below the landfill.
Animals would be more attracted to the landfill due to odor.
Groundwater near the landfill would be polluted.
Garbage in the landfill would not be compacted.
Jasmine went on a vacation to the beach with her family. When they arrived, she noticed a lot of pollution on the shore. What kind of negative effects does this have on the ocean and its inhabitants?
Select TWO correct answers.
The organisms use the pollution to make their homes.
Some organisms may get sick by eating the pollution.
The pollution does not affect the organisms in the ocean.
Some organisms may get tangled in the pollution and die.
Some of the organisms use the pollution as camouflage.
Farmers recently have started to use a lot of fertilizer on farms. Extra fertilizer runs off the farms, into the rivers, and out into the oceans. Which of the following would be a likely outcome of this?
Animals will use the fertilizer to grow.
Kelp on the bottom of the ocean will grow.
Coral reefs will grow faster.
Algae will grow, causing algae blooms.
Humans depend on the oceans for food as well as for recreational entertainment. Which of the following are other ways in which humans depend on the oceans?
I. Oxygen production from phytoplankton
II. Weather regulation due to coastal water temperature
III. Transportation
IV. Relief from hurricanes and tornadoes
I & III only
I, II & III only
II & IV only
II, III & IV only
Many of the ways oceans are impacted are shown in the image provided. How many of the methods shown do humans have control over?
All of them
5 of 13
8 of 13
10 of 13
Using the image provided, which answer choice correctly summarizes how the pollution from the factory and the commercial fishing industry are connected?
The factories provide nutrients for the fish, increasing their populations, which in turn helps the fishing industry by increasing their profits.
The factories produce pollution, which ends up in the water, reducing the number of animals in the oceans. The fishing industry then cannot catch enough fish to meet the demand.
The fishing boats produce pollution, which impacts the factory’s ability to produce its product.
The fishing boats catch the majority of fish in the oceans, which prevents the factories from having the required materials to function.
Neighborhoods in coastal areas use algaecide in their ponds to control algae growth. The algaecide interferes with the algae's ability to conduct photosynthesis which kills the algae, allowing the pond to look clean. When there is a large rainstorm, the algaecide runs off into the local area streams. This water eventually runs out into the ocean. What is the likely outcome of the algaecide getting into the oceanic ecosystem?
Increase in the size of the fish
Increase in the number of zooplankton
Plants will increase in size
Plants will decrease in number
What can you tell about the temperature of the ocean from this graph?
As the depth of the ocean increases, the temperature increases.
As the depth of the ocean decreases, the temperature decreases.
Water temperature does not change as the depth of the ocean increases.
Water temperature decreases as the ocean gets deeper.
In an agricultural area, a heavy rainfall caused a flash flood. The topsoil from a freshly fertilized field washed into a local stream. As a result, the amount of nitrogen in the water drastically increased, causing the algae to grow to record levels and cover the surface of the stream.
What effect did this bloom of algae have on the stream?
The animal life in the stream was benefited since most fish eat algae.
The algae upset the balance of carbon dioxide and oxygen in the water, causing fish to die.
The algae acted as a blanket on the stream, causing the water temperature to increase and the fish to thrive.
The algae brought in a predator that ate the local fish.
For many years, a small stream has flowed through a growing city. Recently, there has been an increase in the building of houses, streets, and storm drains in the area. When it rains, water enters the small stream through storm drains. What effect will the recent growth in the area likely have on the stream?
Select TWO completely correct answers.
The water level will rise causing the river to flow more slowly and deposit sediment downstream.
The water quality will remain constant and the number of species in the creek will increase.
The increase in paved areas will increase the amount of water flowing into the creek. The stream bank will begin to erode.
The amount of water flowing into the stream will decrease and the stream bed will begin to erode.
The water quality will decrease and the number of species in the creek will be negatively affected.
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?
Ocean pollutants are entering the river.
Pollutants are entering from other drainage basins.
The river basin picks up more human pollutants.
The water goes through a salt dome and get more polluted.
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 —
rots the base of the fence post and attracts harmful insects
goes deep into the ground and pollutes the groundwater
kills weeds and they are an important part of the environment
attracts more insects that will take over his yard
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?
At the top of the river.
Away from the river.
At the middle of the river.
At the bottom of the river.
Using the image as a reference, which human activities will negatively affect the nearby groundwater?
Select TWO answers.
Runoff, containing fertilizer from the farm, photosynthesizes and causes algae blooms.
Stormwater flows into the river.
Students can plant trees and tall plants near shorelines.
The factory's smokestacks release pollutants into the atmosphere.
The city manager implemented a water conservation policy.
Observe the diagram provided. Water samples were collected from Points A, B, and C on the map. In which sample was pollution found to be the highest?
Point A
Point B
Point C
All were equal
Determine how human activity can impact watersheds.
Drag the correct answers for each row.
Planting plants near water systems
Increasing the amount of fuel efficient cars
Reduce, reuse and recycle household waste
Industrial waste poured from a factory drain
Fertilizer runoff from farming and agriculture
