보호

Able to be used again or replaced naturally so that it is never finished or used up; specifically referring to energy sources.

To emit, discharge, or release substances (like gas or waste); also used metaphorically to produce talented people.

To reduce or cut down the quantity, volume, or size of something, often used for budgets, personnel, or emissions.

The act of sending out or releasing substances such as gas, heat, or waste into the environment. It is a critical term in discussions about climate change and pollution.

The envelope of gases surrounding the earth or another planet. It is essential for describing air pollution and environmental issues in IELTS.

The quality of being able to continue over a long period of time without interruption or weakening.

To preserve or keep something in its original state, especially something valuable like nature, culture, or data. It implies protection from damage or loss.

The quality of occurring only once or being disposable after one use. Often used in environmental contexts regarding waste or in social contexts regarding temporary events.

The quality of being able to continue over a long period of time, especially without depleting natural resources.

Able to be maintained at a certain rate or level, especially without depleting natural resources or damaging the environment.