A major source of oxygen on Earth is
A) snow.
B) ocean-based phytoplankton.
C) plants.
D) decomposition of water in the oceans.
Correct Answer:
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Q13: Commercial airplanes fly in the
A)biosphere.
B)stratosphere.
C)troposphere.
D)ionosphere.
Q14: The most important of the minor components
Q15: Nitrogen is converted to nitrates by which
Q16: In the stratosphere,oxygen (O₂)is converted to ozone
Q17: Which component of the atmosphere is predicted
Q19: Identify a source of air pollution.
A)photosynthesis
B)ozonolysis
C)earthquakes
D)wildfires
Q20: An atmospheric inversion is a phenomenon that
Q21: The word smog is believed to have
Q22: Removal of particulates from smokestack gases
A)decreases the
Q23: In December,1952 in London,a four-day-long atmospheric inversion
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