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Answer 1

Answer:

1 Ans) Insulators work as protectors. They may protect heat, sound and the passage of electricity. Thermal insulators, sound insulators and electrical insulators are used for various reasons, from keeping houses warm to protecting electrical wires and soundproofing rooms.

2 Ans)  Acidity is caused when an excess of acids is produced in the stomach. An antacid, such as milk of magnesia, act as a base, and react with excess acid and neutralize its effect, thus giving relief.

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