The height of an electromagnetic wave is its
A. frequency.
B. wavelength.
C. plane of electrical component.
D. amplitude.
Answer: D
Environmental & Atmospheric Sciences
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43% of the commercial energy used in the U.S. is unnecessarily wasted.
Answer the following statement true (T) or false (F)
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On its slow journey through the crust, mafic magma evolves into intermediate magma by differentiation and assimilation of ________.
A. silicic rocks B. gabbro C. basalt D. mantle rocks
Environmental & Atmospheric Sciences
What is not true about terraces?
A) Most terraces were once part of a floodplain. B) According to superposition, the lowest terrace is the oldest. C) Terraces develop along a river that is incising (eroding) downward. D) A river can have more than one level of terraces.
Environmental & Atmospheric Sciences
When did the Bolshevik Revolution occur?
A) 1917 B) 1817 C) 1945 D) 1967 E) 1989
Environmental & Atmospheric Sciences