Venus's crust is thicker than Earth's because
A. Venus has little internal activity, keeping the crust from melting.
B. the high temperatures at the surface of Venus have baked the crust.
C. volcanic eruptions continuously add more material to the surface.
D. rocks on Venus melt at higher temperatures.
Answer: D
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A) 21. m B) 24. m C) 16. m D) 9. m E) 28. m
Van der Waals bonding is due to
A) the transfer of electrons between atoms. B) atoms bonding to hydrogen molecules. C) unequal charge distribution around neutral molecules. D) the sharing of electrons between atoms.
List the terrestrial planets in decreasing order of their mass.
A. Venus, Earth, Mars, Mercury B. Mercury, Venus, Earth, Mars C. Mercury, Mars, Venus, Earth D. Earth, Venus, Mars, Mercury
One light-year (ly) is roughly _____
A) 1010 km B) 1011 km C) 1012 km D) 1013 km