Question

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Answer 1

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• Photosynthesis is an example of Chemical Change.

• When Magnesium Ribbon burns in air it produces Magnesium Oxide.

• Crystallisation is the process of getting crystals of pure substance from the solution.

• Formula of copper sulphate is $\sf CuSO_{4}$

• Melting of cancel wax is Physical Change.

• The day to day condition of the atmosphere at a place with respect to temperature, humidity is called Weather.

• By Rain Gauge instrument rainfall is measured.

• The average weather pattern taken over a long time is called as Climate.

• The amount of water vapour is called Humidity.

• The climate of Kerala is Hot and wet.

• Elephant uses its Trunk as a nose

• In winters temperature of polar regions can be as low as Below 30⁰C.

• Polar Bears have white fur which protects them from predators.