Oxygen is supplied to the atmosphere by
A) ozone.
B) incomplete combustion.
C) photosynthesis.
D) complete combustion.
Correct Answer:
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Q1: Which of the following gases is a
Q2: Which of the following gases is a
Q3: Weather occurs in the
A) stratosphere.
B) troposphere.
C) mesosphere.
D)
Q4: Photosynthesis produces _ in the atmosphere.
A) carbon
Q5: Jet planes avoid bad weather by flying
Q7: The top of the stratosphere is called
Q8: The top of the troposphere is called
Q9: The most abundant gas in the atmosphere
Q10: The second most abundant gas in the
Q11: The transition between the troposphere and the
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