What generates internal waves?
a. Wind energy
b. Tidal energy
c. Ocean currents
d. All of these choices
ANS: D
They can have large wavelengths. They may be responsible for mixing nutrients in surface waters
which trigger plankton blooms. Information can be found in the section Internal Waves Can Form
between Ocean Layers of Differing Densities.
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The concept of energy was unknown to
A. Isaac Newton. B. Albert Einstein. C. both of these D. none of the above
The Christian Church in Western Europe was split in the 15th and 16th centuries as a result of the
A) efforts to convert people in Asia. B) Protestant Reformation. C) immigration of the people to the United States. D) Incorporation of Jewish beliefs into Christianity.
Which statement about the stream cross-sectional velocity is true?
A. Velocity is highest in the center where friction is lowest. B. Velocity is highest in the center where friction is highest. C. Velocity is lowest in the center where friction is lowest. D. Velocity is lowest in the center where friction is highest.
Where several valley glaciers have joined together, one result is ________
A) medial moraines B) paternoster lakes C) drumlins D) eskers E) arêtes