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प्रश्न
The major cause of environmental pollution is the use of:
(a) hydrogen as fuel
(b) biomass energy
(c) ocean energy
(d) fossil fuels
उत्तर
fossil fuels
The burning of fossil fuels produces acidic gases and large amounts of carbon dioxide and smoke, all of which pollute the environment.
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संबंधित प्रश्न
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