생태계

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.

To separate or divide things that were together or combined.

To keep safe from harm, injury, or loss; to guard or defend.

The process of converting waste materials into new materials and objects; recycling.

To last or continue for a certain period of time without stopping or changing significantly.

The process of making the air, water, or soil dirty and dangerous for living things.

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