The chemical properties of matter are due mostly to their
A) protons.
B) electrons.
C) neutrons.
Answer: B
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While the historical definition of a constellation is "a pattern or figure of stars in the sky," the modern definition used by astronomers is
A) a group of stars in the sky that are all very close to each other. B) a specifically named and bordered region of the celestial sphere. C) any grouping of very bright stars in our galaxy, often hosting a star cluster. D) no definition; astronomers no longer use the term constellation.
The average speed of a horse that gallops 10 kilometers in 30 minutes is
A) 15 km/h. B) 20 km/h. C) 30 km/h. D) 40 km/h.
Of the Jovian satellites, which shows the oldest, most cratered surface?
A) Miranda B) Callisto C) Enceladus D) Ganymede E) Triton
A 10 solar mass main sequence star will produce which of the following remnants?
A) black hole B) white dwarf C) neutron star D) none of the above