power that is used to provide heat, operate machines etc, , the air, water, and land on Earth, which is affected by man’s activities, , a system for making a room or building warm, , the process of making air, water, soil etc dangerously dirty and not suitable for people to use, or the state of being dangerously dirty, , to put used objects or materials through a special process so that they can be used again, , food, paper etc that is no longer needed and has been thrown away, , to get rid of something that you do not want or need, , someone who does not eat meat or fish.

Environment

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