fuel - material such as coal, gas, or oil that is burned to produce heat or power., smog - a mixture of smoke, gases, and chemicals, especially in cities, congestion - a situation in which a place is too blocked or crowded, causing difficulties, diesel - a type of heavy oil used as fuel, environment - the air, water, and land in or on which people, animals, and plants live, exhaust fumes - the waste gas from an engine, motorway - a wide road for fast-moving traffic, pollution - damage caused to water, air, etc. by harmful substances or waste, sustainable - made in a way that causes, little or no damage to the environment and therefore able to continue for a long time, toxic - poisonous, renewable - relating to forms of energy that are produced using the sun, wind,

High Note 3 Unit 4

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