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The evidence that during photosynthesis ...

The evidence that during photosynthesis oxygen comes from water

A

photosynthetic bacteria employ `H_(2)`S and `CO_(2)` to from carbohydrates, water and sulphur

B

isolated illuminated chloroplasts release oxygen if provided with pottasium ferrocynaide

C

isotopic `O^(18)` provided as `H_(2)O^(2)` appears as `O_(18)^(2)` liberated in photo synthesis

D

all the above

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The correct Answer is:
D
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