1.

Describe an activity to show that sunlight is necessary for photosynthesis

Answer» KEEP A POTTED PLANT IN LIGHT FOR 2 DAYS.
KEEP ANOTHER POTTED PLANT IN DARK FOR 2 DAYS.
TEST THEM AFTER THAT FOR STARCH(PRODUCED DURING PHOTOSYNTHESIS)

THE POTTED PLANT KEPT IN LIGHT GIVES A +VE STARCH TEST.
THE POTTED PLANT KEPT IN DARK GIVES A -VE STARCH TEST.

THEREFORE SUNLIGHT IS NECESSARY FOR PHOTOSYNTHESIS.
HENCE PROVED.


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