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Question :
3. a) i
a) ii
b)

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Question :
3. c) i Fat
c) ii Protein
d)

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Question:
4. a) i Temperature of porridge in bowl J maintain hot while temperature of porridge in bowl K decreases.
a) ii Material used to make bowl J is heat conductor while material to make bowl K is heat insulator.

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Question:
4. (b) i Plastic Cup
(b) ii It is because the material of plastic cup is heat insultor.

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Question:
4. c) conduction
d) transfer the water into a thermal flask

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i) small intestine
ii) to increase the surface area for absorption of digested food
iii)