Which of the following naturally convert(s) atmospheric nitrogen into reactive nitrogen?
A) Lightning and soil bacteria
B) Fossil fuel combustion
C) Various industrial processes for making fertilizers
D) Denitrifying bacteria
A
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What remains unchanged regardless of depth?
a. Wavelength b. Wave height c. Wave period d. Wave shape
Transuranic wastes are materials that have been contaminated with ________
A) elements with an atomic number greater than that of uranium B) urine C) gamma rays from distant parts of the solar system, beyond Uranus D) transuranic acid
The conditions that persist along the West Coast of the U. S. that are conducive to fog formation are:
A) moist air moving over a cold surface. B) inversions and a warm land surface. C) steep lapse rate and cold surface. D) inversions and a warm water surface. E) steep lapse rate and a warm surface.
Steep-sided hills of viscous lava that pile up over volcanic vents are known as
A) volcanic domes. B) cinder cones. C) composite volcanoes.