Question

Answer it...
very short answer type question...​

Answer 1

To prove the necessity of sunlight in photosynthesis following steps need to do

Take a plant with destarched leaf.

Leaf is partially covered with black paper on which a design is cut.

Expose this plant to sunlight for few hours and perform a starch test with iodine solution.

Observation-

Covered leaf part shows brown colouration.

Exposed leaf shows blue-black colour.

Result- Starch is present in the exposed leaf.

Conclusion- Leaf exposed to sunlight give iodine test, proving that sunlight is necessary for photosynthesis.

Answer 2

Answer:

Hello Shalini, how are you hope you're fine :)

Here's your answer.....

To show experimentally that light is necessary for photosynthesis. A potted plant, black paper strips or Ganongs light screen, clips or cellotape, alcohol, iodine solution, water bath, beaker, burner, water, petri dish, dropper. Light is one of the requirements for photosynthesis.

Hope it helped you sister.....