Pls help just once. Pls don't report me I need to get it done ASAP.

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primary 5 | Maths | Whole Numbers
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primary 5 Maths Whole Numbers Singapore

Pls help just once.
Pls don't report me
I need to get it done ASAP.

Date Posted: 3 years ago

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A) air is a poor conductor of heat.

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Date Posted: 3 years ago

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Michelle Ng

3 years ago

"And as air is a poor conductor of heat", heat from the surrounding air cannot enter the building.

Sorry i missed out that sentence above.

C) source of heat for (a) : candle
Source of heat for (b) : Sun

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Date Posted: 3 years ago

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b) during the day, heat from the Sun is unable to enter the double layered window as there is a layer of air in between surrounding air and inside the building. This keeps the building cool and thus conserves electricity for air-conditioning.

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