The extremely deep ocean Marianas Trench is a result of __________.
  • Mercury.
  • radioactive decay
  • fault
  • subduction
Layered ___________ ____ exposed by erosion can be seen when looking at the Grand Canyon in the United States.
  • continental crust
  • its slow rotation
  • locked up in rocks
  • sedimentary rock
Earth's temperature remains fairly steady, which means that Earth must return nearly the same amount of energy to space that it receives from the Sun. In what forms does Earth return most of this energy to space? visible light emitted by the surface and atmosphere infrared light emitted by the surface and atmosphere visible light reflected by clouds ultraviolet light reflected by the surface visible light reflected by the surface
  • Venus has relatively few impact craters and these craters are distributed fairly evenly over the entire planet.
  • The atmosphere is too cold and thin for liquid water today, yet we see evidence that water flowed on the surface in the past.
  • infrared light emitted by the surface and atmosphere; visible light reflected by clouds; visible light reflected by the surface
  • Size: same as the Moon. Distance from Sun: same as Mars. Rotation rate: once every 10 days.
Old Faithful Geyser at Yellowstone National Park in the United States acquires its energy from a ___ ____.
  • two
  • seafloor crust
  • seafloor spreading
  • hot spot
Australia is composed of relatively old and thick ___________ _____.
  • continental crust
  • The entire Earth will warm up by the same amount.
  • its slow rotation
  • Mercury
The earthquakes that occur in Southern California generally occur above a _____.
  • fault
  • Mercury
  • seafloor spreading
  • subduction
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