생태계

The act of separating waste into categories (paper, plastic, glass, etc.) for collection and recycling.

The act of protecting and preserving the natural environment and its resources from damage or destruction.

Unpleasant or loud sound that causes disturbance; noise pollution.

The practice of separating waste into categories (plastic, paper, glass, etc.) before disposal for recycling.

Not harmful to the environment; eco-friendly. It refers to products or practices that help conserve the environment.

The termination of a kind of organism or of a group of kinds, usually a species. It means no more individuals of that species exist.

A slowly moving mass or river of ice formed by the accumulation and compaction of snow on mountains or near the poles. A key term in TOEFL topics about climate change and geology.

The amount of rain, snow, sleet, or hail that falls to the ground in a specific area during a specific period.

Materials or substances such as minerals, forests, water, and fertile land that occur in nature and can be used for economic gain.

The state of living or inhabiting a certain place. It is primarily used to describe animals or plants living in their natural habitat.