Question

- Which one of the following material is not lustrous?
a) Aluminium
b) Copper
c) Wood
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6-Which of the following changes cannot be reversed?
a) opening a window b) freezing off ice cream
c) hardening of cement
ng is not an ingredient for​

Answer 1

Answer:

1

Explanation:

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Answer 2

Answer:

b) copper

6

c) hardening of cement..