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  • Question 1
    30 seconds
    Q.

    What probably caused the patterns in this rock?

    answer choices

    Flowing water or wind deposits

    Alternating lava and volcanic ash deposits

    Evaporating salt water

    Avalanches of soil and rock

  • Question 2
    30 seconds
    Q.

    A group of students wants to make a map of a small lake, showing its depth at various points. They plan to row their boat all around the lake and measure the depth at different locations. What other information besides depth should they record at each location in order to have enough data for constructing the map?

    answer choices

    The tempemture at the surface of the water at each location The position of each depth measurement relative to fixed points on the shore

    The time of day the depth was measured at each location

    The relative humidity at each location

    The accumulated salts in seawater make the seawater much more dense than fresh water

  • Question 3
    30 seconds
    Q.

    One of the characteristics of salt water is that it has

    answer choices

    higher levels Of dissolved oxygen than fresh water

    a lower freezing point than fresh water

    decrease buoyance for swimmers

    ninety elements that are easily extracted from seawater

  • Question 4
    30 seconds
    Q.

    Moist air from the Pacific Ocean rises and cools as it passes from west to east over the Sierra Nevada Mountains. Once it is over the mountain range, the air descends and warms on the other side. What is the result of the air ascending, then descending over the mountains?

    answer choices

    Desert on the west side of the mountains and heavy rains on the east side

    Heavy rains on the west side of the mountains and deserts on the east side

    Heavy rains on the west side of the mountains and year-round snow on the east side

    Desert on the east side and west sides of the mountains and heavy rains on top of the mountains

  • Question 5
    30 seconds
    Q.

    How are stars distributed in space?

    answer choices

    Evenly distributed in space with no significant clumping

    In clumps that are evenly distributed in space, with scattered stars in between

    In clumps that are themselves evenly distributed in space

    In clumps that are themselves unevenly distributed in space

  • Question 6
    30 seconds
    Q.

    The folding and faulting found in the rocks of the Blue Ridge Mountains of Virginia were created by -

    answer choices

    collisions of continental plates

    wave action of prehistoric ocean

    the Coriolis effect

    heating and cooling of the prehistoric atmosphere

  • Question 7
    30 seconds
    Q.

    Which type of rock appears to be the most easily eroded by the river in this area?

    answer choices

    Limestone

    Shale

    Basalt

    Sandstone

  • Question 8
    30 seconds
    Q.

    Because granite cools below the surface of the Earth, it is -

    answer choices

    an igneous extrusive rock

    an igneous intrusive rock

    a sedimentary rock

    a metamorphic rock

  • Question 9
    30 seconds
    Q.

    In karst regions, caves are carved by the flow of water through limestone bedrock. How do the stalagmites and stalactites in the caves develop?

    answer choices

    They are carbonate deposits formed by dropping water in air-filled cavities.

    They are granite intrusions that remain behind after water dissolves the surrounding limestone.

    They are crystals that grow as water hollows out the cavern.

    They are carvings made in limestone by the swirling water as it hollows out the cavern.

  • Question 10
    30 seconds
    Q.

    The label L indicates an area of low -

    answer choices

    temperatures

    pressure

    altitude

    rainfall

  • Question 11
    30 seconds
    Q.

    Which body in the solar system has an orbit so eccentric that it crosses the orbit of neptune?

    answer choices

    Mars

    Mercury

    Jupiter

    Pluto

  • Question 12
    30 seconds
    Q.

    A student hypothesizes that water from infrequently used school faucets contains more chemical impurities than the water from frequently used faucets. At the same time of day, the student uses a water test kit to measure the water impurities from the different faucets. Which is the manipulated variable in this investigation?

    answer choices

    The chemicals used to test the water

    The amount of water per sample

    The time of day when water is collected

    The locations of water collection

  • Question 13
    30 seconds
    Q.

    Wetlands are more prevalent in which physiographic province of Virginia?

    answer choices

    Coastal Plain

    Piedmont

    Blue Ridge

    Appalachian Plateau

  • Question 14
    30 seconds
    Q.

    In the first picture, the sphere is in a beaker with 100 mL of water. In the second picture, the dry sphere is being massed. Which of the values listed is closest to the density of the black sphere?

    answer choices

    0.5 g/mL

    0.7 g/mL

    1.4 g/mL

    2.1 g/mL

  • Question 15
    30 seconds
    Q.

    What process has occurred when atoms combine to form a new element and release energy?

    answer choices

    Fusion

    Fission

    Hydrogenation

    Ionization

  • Question 16
    30 seconds
    Q.

    The mineral in the above table that has a blue color and will scratch garnet is -

    answer choices

    pyrite

    garnet

    magnetite

    topaz

  • Question 17
    30 seconds
    Q.

    In order to protect aquifers near landfills, material is placed under the soil to prevent pollution. Which property must the protectvive material possess?

    answer choices

    High porosity

    Low permeability

    High reflectivity

    Low conductivity

  • Question 18
    30 seconds
    Q.

    At which range of altitude is air pressure closest to 40 kPa based on these data?

    answer choices

    Between 4.5 km and 6.0 km

    Between 6.0 km and 7.5 km

    Between 7.5 km and 9.0 km

    Between 9.0 km and 10.5 km

  • Question 19
    30 seconds
    Q.

    At star might be much brighter than it appears to be. This is called the star's absolute magnitude. The difference in apparent magnitude and absolute magnitude is due primarily to the star's -

    answer choices

    surface temperature

    motion through the universe

    diameter

    distance from earth

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  • Question 20
    30 seconds
    Q.

    Rock layers tell a story about their past. What is the basic assumption that is made when reading this story?

    answer choices

    The composition of the Earth's atmosphere has been constant.

    The Earth's crust cooled and then remelted before rock layers began to form.

    The processes in the rock cycle were the same in the past as they are today.

    Chemical reactions in the past were slower than they are today.

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