The sparks from a cigarette lighter flint are at high temperature, but they do not bum the skin because they contain very little .......... .

Heat

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Warmth

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Lead

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Ash

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Solution

The correct option is A Heat
The sparks are not huge and combust very little, emitting little heat. Hence, Option A is correct. The rest of the options do not express this condition, hence incorrect.

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Similar questions

Snakes are killed in large numbers because:
(a) they are very poisonous
(b) they kill rats
(c) their skin is expensive
(d) they damage the crops

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