Which of the following is NOT one of the four stages in the development of a terrestrial planet?
a. flooding
b. cratering
c. slow surface evolution
d. fusion of hydrogen to helium
e. differentiation
D
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What chemical compound is responsible for Uranus and Neptune's color?
A. water B. methane C. complex organic compounds of sulfur and phosphorus D. ammonia
The idea that everything is made of small particles is
A) a useful idea that is known for certain to be true. B) still only a tentative speculation made by many scientists. C) a useful theory, but not known for certain. D) false and no longer used by scientists. E) not yet widely accepted.
The object described in problem N12T.2 has an orbital eccentricity of:
A. 1.08 B. 1.81 C. 0.81 D. 0.90 E. 1.35 F. Other (specify)
Neptune:
A) is blue and has active cloud formations. B) does not have a moon of its own. C) has rings that are easily detectable from Earth. D) is made up of an atmosphere that is free of methane.