Question

Q1. Less vision in evening and night is caused by deficiency of?

Q2. Diffusion of Light in the atmosphere takes place due to?

Q3. To test the presence of starch in food the reagent that may be used is?

Answer 1

Heya !
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1. Less vision in evening and night is caused by deficiency of Vitamin A.

2. Diffusion of Light in the atmosphere takes place due to dust particles.

3. To test the presence of starch in food the reagent that may be used is Iodine.
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☆ Hope this helps.

Answer 2

Hey friend

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Here is your answer

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Q.1 ans. => Less vision in evening and night is caused due to deficiency of VITAMIN A. The deficiency disease is called Night Blindness.

Q.2 ans.=> Diffusion of light takes place due to dust particles.

Q.3 ans.=> To test the presence of starch in the food, The reagent which is useful, That is IODINE.

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Hope it helps!!