nature conservation - work that protects natural resources including wildlife, rivers, forests and other natural landscapes., environmental hazard - a substance or an event which has the potential to threaten the surrounding natural environment., environmentally-friendly - not harmful to the environment., endangered species - a species that is in serious danger of extinction., global warming - a gradual increase in world temperatures caused by polluting gases, dumping ground - a place where things that are not wanted are left,

Environment

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