Heat is applied to a container. The molecules inside the container become
A. more energetic; pressure decreases.
B. more energetic; pressure increases.
C. less energetic; pressure increases.
D. less energetic; pressure decreases.
Answer: B
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Flash floods often have sudden onsets because
A) intense rainfall is often associated with severe thunderstorms B) rain usually falls only for short periods C) intense rainfall falling over long periods of time rarely causes floods D) severe thunderstorms can usually be predicted hours in advance
In photosynthesis, what two things must come together with light energy input to produce sugar and oxygen?
a) Hydrogen and carbon dioxide b) Water and oxygen c) Hydrothermal vents and oxygen d) Water and hydrogen e) Water and carbon dioxide
Statutory laws are created by ________
A) the EPA and other federal agencies B) Congress C) local law enforcement D) the court system E) the executive branch
Which of the following channel characteristics adjusts in response to changes in energy of flow and sediment load in the channel?
A) channel slope B) channel width and depth C) both A and B D) none of the above - river channel form is controlled exclusively by the type of rock or sediment through which the river flows