Over time, as they age, the habitable zone of stars like our Sun
A) move inward
B) remain the same
C) suddenly disappear
D) move outward
D
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After the Pacific and Atlantic oceans, the next largest ocean on Earth is which ocean?
a. Arctic b. Indian c. Antarctic d. Mediterranean
According to Kepler, the line from the Sun to any planet sweeps out equal areas of space
A) with each complete revolution. B) only when the paths are ellipses. C) in equal time intervals.
If different filters are used with an astronomical telescope, which of the following would give the best resolution?
a. red b. yellow c. green d. purple e. All yield the same resolution.
Which of the following substances has the greatest specific heat?
A. copper B. ice C. water D. steam E. Ice, water, and steam have equal specific heats since they are the same material, and this specific heat is greater than that of copper.