Refer to the given flow chart. Identify P. O and R and select the incorrect statement.
A
During the process of burning, P is used up and Q is given out.
B
Autotrophs could be the only source of P in the atmosphere.
C
Q is used in fire extinguishers as it extinguishes fire.
D
In atmospheric air. R is present in highest percentage whereas P is present in lowest percentage.
Text Solution
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The correct Answer is:
D
In the given flow chart P, Q and R could be oxygen, carbon dioxide and nitrogen respectively. Nitrogen is present in the atmosphere in highest percentage but oxygen is not present in lowest percentage.
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