When the nuclei of certain isotopes with large mass numbers (such as uranium-235) are struck by a neutron, they split apart into lighter nuclei and release energy. This is known as nuclear ____.
A. fission
B. sequestration
C. fractionation
D. fusion
E. liquefaction
Answer: A
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What are the top four components of municipal solid waste that are buried in U.S. landfills, listed from highest to lowest?
A. paper, food waste, yard waste, and plastics B. plastics, paper, yard waste, and food waste C. paper, yard waste, food waste, and plastics D. yard waste, paper, food waste, and plastics E. plastics, food waste, yard waste, and paper
A glacier forms when
A. snow moves downslope under the influence of gravity. B. temperatures do not rise above freezing. C. snow accumulates to form ice and the ice mass begins to flow under its own weight. D. meltwater at the base of a snowmass contributes to downslope flow.
High pressure promotes clear, dry weather
Indicate whether the statement is true or false
Wave orbits decrease in size with depth, and motion is essentially gone at a depth of ________.
A. 200 meters B. one half wavelength C. one wave length D. 2 to 3 times wave height E. 600 feet