Mudflows are common after volcanic eruptions.
Answer the following statement true (T) or false (F)
True
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Kinetic energy is defined as
A) stored energy. B) energy gained or lost when a substance changes states. C) energy flow between molecules. D) the energy of motion.
The Clean Air Act was passed in ____.
A. 1930 B. 1950 C. 1970 D. 1984 E. 2004
A spinning cloud of interstellar gas tends to
A. condense. B. disperse. C. turn into a sphere. D. flatten.
Since some of the compounds that are destroying ozone are found in nature normally, how is it possible to tell that the reactive molecules destroying the ozone are due to our actions?
A. They are accompanied by compounds that are only man-made. B. The compounds only increased in the past few years. C. The chemical composition is different than natural compounds. D. The isotope distribution is unique to man-made elements. E. all of the above