CTET 2 Math and Science 2011 Paper

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Question : 79 of 120

Marks: +1, -0

Green plants appear to release oxygen instead of carbon dioxide into the atmosphere during the day time because

green plants do not respire during the night time
green plants respire only during the night time
green plants respire during the day time but are involved in photosynthesis during the night time
the rate of photosynthesis is higher than the rate of respiration during the day time

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