Watershed Pollution and Depletion
3 years ago
jdonley
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15 QuestionsShow answers
  • Question 1
    60 seconds
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    Q. What is a watershed?
    answer choices
    One body of water that drains into a larger body of water
    A flowing river that empties into the ocean
    A collection of water underground that can be used as a water supply
    An area of land that drains into a specific body of water
  • Question 2
    60 seconds
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    Q.

    Bacteria is one of the main pollutants of concern in our watershed. What is the source of most pathogenic (harmful) bacteria that gets into our waters?

    answer choices

    Animal waste products or human sewage

    Sediment or dirt

    Trash

    Fertilizers

  • Question 3
    60 seconds
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    Q. Excess nutrients can be harmful to our watershed. Where do excess nutrients, such as nitrogen and phosphorous, typically come from?
    answer choices
    Sediment or dirt
    Trash
    Oil and chemical spills
    Overuse of fertilizers
  • Question 4
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    Q. How do most pollutants typically get into our watershed?
    answer choices
    Factories dump pollution into creeks and rivers
    All of our wastewater goes into creeks and rivers
    Runoff from heavy rain carries it into creeks and rivers
    Oil spills leak into creeks and rivers
  • Question 5
    60 seconds
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    Q. Pet owners should pick up pet waste instead of leaving it on the ground. How can this help protect our watershed?
    answer choices
    It prevents bacteria from getting into our water
    It keeps the water from getting muddy
    It helps the water smell clean
    It prevents certain species of fish from overpopulating
  • Question 6
    60 seconds
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    Q.

    Excess nutrients in the water can be harmful, because they lead to -

    answer choices

    High levels of sediment in the water

    Pathogenic (disease causing) bacteria in the water

    Low dissolved oxygen levels in the water

    Harmful mutations in fish and frogs

  • Question 7
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    Q.

    Why should we be concerned with runoff water from neighborhood and city streets that goes into storm drains?

    answer choices

    Excess water in storm drains can host alligators and other dangerous animals

    The water that goes into storm drains can flood houses and businesses

    Water that goes into storm drains isn't usually cleaned before it goes into the watershed

    Water flowing into underground storm drain systems can form caves and cause subsidence

  • Question 8
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    Q.

    How might a concrete septic tank cause problems in the watershed?

    answer choices

    The tank or its pipes could crack and leak sewage, which could pollute the groundwater

    Harmful chemicals from the concrete can soak into the soil and be washed into creeks

    The force of the heavy tank could force water out of the aquifer and cause subsidence

    The toxic chemicals in the tank could kill nearby plants and lead to soil erosion

  • Question 9
    60 seconds
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    Q.

    High levels of sediment in the water can be harmful to aquatic plants and animals. Which of these human activities can lead to soil erosion?

    answer choices

    Using fertilizer on lawns and crops

    Allowing pet waste to wash into the watershed during rains

    New construction of neighborhoods and businesses

    All of these choices

  • Question 10
    60 seconds
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    Q.

    One of the most effective ways to prevent soil erosion is to -

    answer choices

    Cover bare soil with concrete or bricks

    Spray fertilizer on the soil

    Plant grasses, shrubs, and trees in the soil

    Put fences around all areas of bare soil

  • Question 11
    60 seconds
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    Q.

    Which of these choices is a good example of nonpoint source pollution?

    answer choices

    A factory releases harmful liquid chemicals

    A river has high levels of sediment

    A blockage in a sewer system causes an sewage overflow onto the street

    A tanker truck spills 800 gallons of chemicals onto the highway

  • Question 12
    60 seconds
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    Q.

    Which of these choices is a good example of point source pollution?

    answer choices

    An area in the ocean has high levels of nutrients

    A creek has high levels of bacteria

    Plastic trash is floating in the river

    Waste from a coal mine is leaking into a local creek

  • Question 13
    60 seconds
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    Q.

    Pollution can enter our groundwater when -

    answer choices

    Pollution spilled on the surface percolates down through soil and rocks

    Underground storage tanks crack and leak

    Underground sewer and septic pipes crack and leak

    All of these

  • Question 14
    60 seconds
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    Q.

    Urban and suburban developments lead to more asphalt, concrete, and rooftops, which leads to more -

    answer choices

    Runoff

    Soil erosion

    Pollution in our watershed

    All of these

  • Question 15
    60 seconds
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    Q.

    Which of these choices causes subsidence, when an area of land sinks down over time or suddenly collapses?

    answer choices

    Unusually high activity of gophers and moles

    Removing too much oil and coal from underground

    Removing, or pumping out, too much water from an aquifer

    Water pollution, such as bacteria, nutrients, or sediment

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