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What is Class 9 Biology Practical Experiments about?

1. The experiment demonstrates that oxygen is evolved during photosynthesis by showing bubbles rising from a Hydrilla plant twig submerged in water in sunlight. 2. Carbon dioxide is necessary for photosynthesis as shown when only the portion of a leaf placed in a bottle with potassium hydroxide did not turn blue-black with iodine. 3. Light is necessary for photosynthesis as the portions of a leaf covered with black paper strips did not turn blue-black with iodine unlike the exposed portions.

Author

jewl007

Language

EN