Question

1. Water is used to extinguish a fire because it (a) raises the ignition temperature of the burning substance (b) lowers the ignition temperature of the burning substance (c) cools the burning substance to a temperature below its ig (d) conducts heat 2. Which among the following fuels has the highest calorific valu (a) Wood (b) Kerosene (C) LPG (d) Hydrogen 3. Which of the following is not derived from a fossil fuel? (a) LPG (b) Kerosene (c) Diesel (d) Biogas​

Answer 1

Answer:

1. b

2.a

3.d

Explanation:

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