Why do scientists describe the theory of gravity as "incomplete"?
A) It does not incorporate a description of matter on a very small scale.
B) It does not explain why light bends near a dense object.
C) It does not agree with the expansion of the universe.
D) The gravity waves it predicts have not been observed.
E) It does not explain the effects on time from a massive object.
A
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A. .avi B. .mov C. .mpeg D. .wmv
When should we next expect to observe a transit of the Sun by Mars?
A) Never B) 2035 C) 2030 D) 2148
A large mass-to-light ratio for a galaxy indicates that
A) the galaxy is very massive. B) the galaxy is not very massive. C) on average, each solar mass of matter in the galaxy emits less light than our Sun. D) on average, each solar mass of matter in the galaxy emits more light than our Sun. E) most stars in the galaxy are more massive than our Sun.
Market justice is the foundation of public health
a. true b. false