The residence time of one molecule of water in the ocean is ________.
A. 3 years
B. 3,000 years
C. 30 years
D. 300 years
Answer: B
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Currently, spent fuel rods used to power nuclear reactors are
A. stored outside of the reactor in water-filled pools and years later, in dry casks. B. sent to a national repository. C. placed in metal drums and dumped deep in the ocean. D. loaded into rockets and shot into space. E. treated chemically to speed up the progression of half lives.
Limestone deposits are primarily composed of the minerals halite and anhydrite. Indicate whether the statement is true or false
Japan owes its economic success to its abundance of natural resources
Indicate whether the statement is true or false
In some instances, light behaves like waves, and in others, like discrete particles
Indicate whether the statement is true or false