The houses heat up during summer due to heating up of the walls and roof. We can reduce this heating process by:
1) Using light coloured walls and painting the roof with reflecting paints
2) Covering the roof with insulating materials and planting trees to provide shades
3) Using more electricity energy to cool the house
4) Spraying cold water
Which of the above statements are correct?

1 and 2

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1,2 and 4

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1 and 3

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3 and 4

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Solution

The correct option is A 1 and 2
Light colored walls reduce heat absorption thereby reducing heating process. Covering the roof with insulating materials and planting trees also reduces heating process. Spraying cold water does not reduce heating, it just absorbs energy.

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The correct option is A 1 and 2Light colored walls reduce heat absorption thereby reducing heating process. Covering the roof with insulating materials and planting trees also reduces heating process. Spraying cold water does not reduce heating, it just absorbs energy.

The correct option is A 1 and 2
Light colored walls reduce heat absorption thereby reducing heating process. Covering the roof with insulating materials and planting trees also reduces heating process. Spraying cold water does not reduce heating, it just absorbs energy.