About half of Earthʹs crust consists of compounds containing
A) nitrogen.
B) oxygen.
C) ozone.
D) argon.
E) carbon dioxide.
Correct Answer:
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Q111: Which of the following is TRUE of
Q112: In 1974,Dr.Rowland and Dr.Molina made what observation
Q113: The ozonosphere is critical to life because
Q114: Which of the following is TRUE of
Q115: Nitrogen (N2)is
A)a product of the radioactive decay
Q117: Oxygen (O2)is
A)a by-product of photosynthesis.
B)now measured at
Q118: The three stable (i.e.,nonvariable)gases in the atmosphere,in
Q119: Which of the following is NOT true
Q120: Which stable (nonvariable)gas in the atmosphere is
Q121: Why is stratospheric ozone loss a concern?
A)Stratospheric
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