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NCSCOS Grade 8 Earth Science - 8.E.1 Diagnostic Hydrosphere

Quiz by NCDPI

Grade 8
Science
North Carolina Standard Course of Study

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10 questions
Show answers
  • Q1
    Most of the earth's surface is covered by
    freshwater
    water
    land
    ice
    30s
    8.E1.1
  • Q2
    An example of an estuary is
    Lake Superior
    the Atlantic Ocean
    Pamlico Sound
    the Catawba River
    30s
    8.E1.1
  • Q3
    The place where salt water from the ocean mixes with fresh water from rivers and streams is called
    an intertidal zone
    an upwelling
    an estuary
    a drainage basin
    30s
    8.E1.1
  • Q4
    In the picture of the ocean floor, letter B marks what landform?
    Question Image
    continental shelf
    ocean basin
    rift zone
    continental slope
    30s
    8.E1.2
  • Q5
    Some ocean currents are caused by differences in the density of water from place to place around the globe. What two factors cause differences in ocean water density?
    differences in amount of dissolved salts and gravity
    difference in water temperature and wind
    difference in water temperature and amount of dissolved salt
    difference in water temperature and phases of the moon
    30s
    8.E1.2
  • Q6
    What pH level should drinking water have?
    7
    10
    1
    3
    30s
    8.E1.3
  • Q7
    Which is a possible solution to protect North Carolina residents from the effects of harmful algal blooms?
    plans and supplies to prepare for emergency evacuations
    warnings to switch to store bottled water instead of tap water
    advisories concerning which fish and other seafood to avoid eating
    laws prohibiting the building of new developments close to shores
    30s
    8.E1.3
  • Q8
    Water conservation is an important issue for many reasons. However, water conservation does not
    ensure the reliability of water supplies
    save money for the consumer
    preserve and protect our natural resources
    provide protection from flooding
    30s
    8.E1.4
  • Q9
    Many different tools are used to monitor the hydrosphere. Which is the BEST example of a bioindicator?
    thermometer
    microbacterium
    rain guage
    Secchi disc
    30s
    8.E1.4
  • Q10
    Which stormwater device does the best job of retaining the water and aiding in nutrient removal?
    A pond that holds water and releases water in small amounts of time to streams.
    A roadside ditch that carries water to the river.
    A stormwater pipe that carries water from streets to creeks.
    A rain barrel that catches water coming off the rooftops of houses.
    30s
    8.E1.4

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