Environmental and Natural Terms

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acid rain

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A form of precipitation that is significantly more acidic than normal, due to the presence of pollutants like sulfur dioxide and nitrogen oxides in the atmosphere.

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air pollution

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The presence of harmful or excessive quantities of substances in the air, which can harm human health and the environment.

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bicycle

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A human-powered vehicle with two wheels, used as a mode of transportation.

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bus

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A large motor vehicle carrying passengers by road, typically one serving the public on a fixed route and for a fare.

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car

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A road vehicle, typically with four wheels, powered by an internal combustion engine or electric motor.

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Earth

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The third planet from the Sun in our solar system, home to all known life.

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garbage

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Waste material, especially household waste.

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coal

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A combustible black or brownish-black sedimentary rock used as a fuel source.

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dam

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A barrier constructed to hold back water and raise its level, forming a reservoir used to generate electricity or as a water supply.

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drought

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A prolonged period of abnormally low rainfall, leading to a shortage of water.