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प्रश्न
What are fuels?
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उत्तर
Fuels: The substances which burn in air to produce a large amount of energy in the form of heat and light are called fuels.
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संबंधित प्रश्न
Complete and balance the following chemical equation.
\[\ce{HgO ->[heat]}\] ______ + _______
Fill in the blank space by choosing the correct word from the given list.
List: oxygen, carbonic, suIphurUioxide gas, precipitation, helium
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Tick (√) the most appropriate answer.
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Tick (√) the most appropriate answer.
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Plants produce oxygen during the process of making their own food.
