Study

Watersheds

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  • Which of these is NOT an example of a freshwater wetland? Answer choices: bogs, swamps, freshwater marshes, mangrove forests
    mangrove forests
  • What term describes the action of smaller streams and rivers feeding into larger rivers of a watershed?
    Tributaries
  • Rivers, lakes, aquifers, and reservoirs make up what percent of all the water on the planet?
    about 1%
  • Which of these is NOT an example of a freshwater wetland? answer choices bogs swamps freshwater marshes mangrove forests
  • Which of the following produces the greatest water pollution? answer choices: Agriculture, Fishing Industry, Water sports, Aquatic organisms
    Agriculture
  • Which is an abiotic factor that most limits the number of frogs living in a pond? Answer choices: the color of the water, the number of predators, the temperature of the water, the populations of producers
    the temperature of the water
  • The land that water flows across or through on its way to a body of water is called
    Watershed
  • A student wanted to test how the temperature of water affects the rate at which a substance dissolves. Based on this information, which is the independent variable in the student’s investigation?
    Temperature of the water
  • The widening channel of a river where it meets the sea, mixing fresh water and salt water
    Estuary
  • What is meant by "potable water"?
    Water that is clean enough to drink
  • The mixture of fresh and salt water is called -
    brackish water
  • Why is it important to keep pollution out of the nearest stream or river?
    The pollution found in the local stream or river eventually flows into the ocean.
  • When heated water is released from factories or power plants is an example of what?
    Thermal pollution
  • Specific sources of pollution that can be identified, like discharge from a pipe at a sewage treatment plant or an oil tanker spill in the Gulf of Mexico, are called
    Point source pollution
  • What is an important source of pollution in the Chesapeake Bay?
    Using too much fertilizer
  • What do you call the condition of water when the oxygen levels reach such an extreme low that aquatic animals are forced to either flee or die?
    Hypoxic
  • How do toxic heavy metals move from soil to lakes and streams?
    runoff
  • Virginia’s water generally empties into what?
    The Atlantic ocean
  • Large blooms of algae on the surface of a lake keep which abiotic factor from reaching the bottom?
    light
  • Where is most of Earth's freshwater available for human use stored?
    Lakes and rivers
  • The largest estuary in the contiguous 48 states is the
    Chesapeake Bay