Answer:
(a) Water is a good conductor of electricity. It conducts electricity and may result electric shock.
(b)LPG has more calorific value than wood and LPG produces no pollution. So LPG is a better domestic fuel than wood.
(c)The ignition temperature of paper is less, so it catches fire easily. It does not catch fire when wrapped around aluminium pipe because aluminium absorbs the heat so paper does not attain its ignition temperature.
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