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← Nature & AnimalsWhich mechanism causes stunted eucalyptus growth when subjected repeatedly to high ozone environments?
A)Increased cuticular wax restricts expansion
B)Enhanced root nodulation inhibits transport
C)Reduced stomatal conductance limits carbon✓
D)Accelerated leaf abscission reduces reserves
💡 Explanation
Restricted growth occurs because ozone exposure triggers adaptive stomatal closure, causing reduced stomatal conductance decreasing CO₂ uptake for photosynthesis, therefore limiting carbon assimilation, rather than affecting structural barriers or root processes.
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