About how often does a natural stream overflow its banks?
What will be an ideal response?
Bankfull discharge occurs about once every two years.
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Phenylketonuria, PKU, is associated with which of the following?
A) the accumulation of phenylalanine B) the conversion of phenylalanine to phenylpyruvate C) the conversion of phenylalanine to tyrosine D) none of the above
Which of the following is an accurate statement about polar climates?
A. They extend far to the south of the Arctic circle. B. They are characterized by strong low-pressure systems. C. They have little precipitation. D. They are a source of cT air masses.
The Younger Dryas period was an example of which type of climate change?
A) non-linear B) minor C) long-term D) linear
A computer monitor looked at from a distance appears as a smooth continuous flow of images. Up close, however, we see this is an illusion. What really exists are a series of tiny pixels. This is similar to a chemist's view of matter in that
A. on the submicroscopic level, chemists find that matter is made of extremely small particles, such as atoms and molecules. B. elements are made up of only three basic types of matter. C. anything that a chemist can see, touch, hear, smell, or taste is an illusion. D. the fundamental particles of matter can also be seen when looked at closely with a magnifying glass.