The surface of Mercury is difficult to map from Earth because
A) it is hidden beneath thick clouds.
B) it is never closer than 8 AU to Earth.
C) it is always near the sun.
D) all of the above
E) none of the above
Correct Answer:
Verified
Q21: Mercury's major atmospheric gas is
A)oxygen.
B)hydrogen.
C)carbon dioxide.
D)Misleading; the
Q35: The moon's distance from Earth is measured
Q37: Which of the terrestrial planets has lobate
Q38: Caloris Basin on Mercury is believed to
Q39: The Moon has a diameter of about
Q41: The moon still has moonquakes deep in
Q42: Lobate scarps are believed to have formed
Q43: _ protects the Earth from small meteorites
Q44: The Earth's moon has a high escape
Q45: The Earth's moon has a dense atmosphere
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