REET 2012 Level 1 Paper

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Question : 139 of 150

Marks: +1, -0

Plants synthesize food by photosynthesis. Following are essential during the process of photosynthesis:

Oxygen, water, sunlight and chlorophyll
Oxygen, sugar, sunlight and water
Carbon dioxide, water, sunlight and chlorophyll
Carbon dioxide, sugar, water and sunlight

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