Question

14. Assertion: Rainbow is an example of dispersion of sunlight by water droplets.
Reason: Light of shorter wavelength is scattered much more than light of larger
wavelength.

15. Assertion: When we blow CO2 into a test-tube containing lime water, it turns milky.
Reason: The change in colour shows the presence of CO2 in the exhaled air.

16. Assertion: Due to the missing of goats in the food chain, the population of tigers will
decrease and the population of grass will increase.
Reason: Food chain maintains the stability of an ecosystem.


17. Assertion: Respiration is opposite of photosynthesis.
Reason: In photosynthesis food is made from energy and in respiration food is
converted to energy.​

Answer 1

Explanation:

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Answer 2

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