Practice Quiz

MTEL Earth Science Practice Test - Question List

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76.
The Oort cloud is a region in space that scientists have determined is:
  1. The source of most comets.
  2. An area where new stars form.
  3. The location of the asteroid belt.
  4. An area where a supernova occurred.
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77.
Which of the following is a characteristic of Venus that distinguishes it from the other seven planets?
  1. The temperature extremes on Venus are the greatest in the solar system.
  2. Venus's orbital path is well outside of the plane of the ecliptic.
  3. Venus's axial rotation is opposite in direction to its orbital path.
  4. The crust of Venus is primarily composed of iron and nickel.
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78.
Which of the following groups of substances makes up most of a comet's nucleus? 
  1. Soot particles, sodium, and complex hydrocarbons.
  2. Nickel, iron, and hydrogen compounds.
  3. Methane, carbon, and elemental oxygen.
  4. Ice, carbonaceous dust, and frozen gases.
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79.
Which of the following best summarizes Newton's first law of motion as it relates to the Moon's orbit around Earth? 
  1. The Moon's inertia keeps it moving tangent to its orbit, while Earth's gravitational field deflects it from a straight path.
  2. The Moon's rotation keeps it on the same path, while its velocity is maintained by Earth's gravity.
  3. The Moon's acceleration is driven by its mass, while its circular motion is maintained by its gravitational attraction to Earth.
  4. The Moon's weight causes it to fall toward Earth, while centripetal force accelerates it away from Earth.
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80.
An astronomer observes rapidly fluctuating radio signals from distant galaxies that occur as precisely spaced bursts of radiation. It is likely that the astronomer has located:
  1. An expanding planetary nebula.
  2. An oscillating black hole.
  3. A rotating neutron star.
  4. An eclipsing binary star system.
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