The aphelion (farthest distance from the Sun) of a comet's orbit A. are all located far beyond the orbit of Pluto.
B. are mostly confined to the region between Mars and Jupiter, although some have orbits reaching well beyond Pluto.
C. are all closer to the Sun than the orbit of Pluto.
D. can be located anywhere from inside the orbit of Pluto to as far as 100,000 AU from the Sun.

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explanation:

physics means: "the branch of science concerned with the nature and properties of matter and energy. the subject matter of physics, distinguished from that of chemistry and biology, includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms."

the temperature in kelvin of 2.0 dm3 of an ideal gas is doubled and its pressure is increased by a factor of four. what is the final volume of the gas