The Big Bang is regarded as the expansion of
A. space.
B. matter.
C. time.
D. energy.
Answer: A
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Beneath a sunlit tree are pinhole images of the Sun. If the tree casting the images is taller, then the images of the Sun are
A. the same size. B. smaller. C. larger. D. impossible to say
Trophic structure refers to the pattern of food consumption in an ecosystem
Indicate whether the statement is true or false
Oceanic ridges and rises result from seafloor spreading along ________
A) convergent plate boundaries B) divergent plate boundaries C) transform plate boundaries D) convergent and divergent plate boundaries E) convergent and transform plate boundaries
What are hutongs?
A) classic, portable dwelling of Mongolia B) small, traditional neighborhoods in China C) civilizations that thrive based on water control D) feudal castle with ornate gardens E) none of the above