Search our dictionary for words used to describe life, the environment and how we deal with it.
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habitat: place where a population lives and its surroundings, both living and non-living.
halogen: type of incandescent lamp with higher energy-efficiency than standard ones.
hazard: potential for radiation, a chemical or other pollutant to cause illness or injury.
hybrid: vehicles that combine electric motor and gasoline engine to get above-average gas mileage.
