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Desert plants take up carbon dioxide at night and prepare an intermediate compound mainly to:

Question
Desert plants take up carbon dioxide at night and prepare an intermediate compound mainly to:
Avoid losing excessive water during the day
Increase photosynthesis at night
Avoid using chlorophyll
Store extra oxygen
Answer
Avoid losing excessive water during the day
Detailed Explanation
Desert plants take in CO2 at night to minimise water loss through stomata during the hot day, and use the stored intermediate for photosynthesis when sunlight is available.
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