A) high \[{{O}_{2}}\]; and low \[C{{O}_{2}}\]
B) high \[C{{O}_{2}}\] and low \[{{O}_{2}}\];
C) high temperature and low \[{{O}_{2}}\]
D) high humidity and temperature
Correct Answer: A
Solution :
Oxygen is a competitive inhibitor of \[C{{O}_{2}}\] fixation. Increase in \[{{O}_{2}}\] concentration would favour the uptake of oxygen by Rubisco leading to increase in photorespiration.
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