Severely damaged or destroyed.

Constantly troubled or affected by something undesirable.

Making or causing a series of sharp knocking or clattering sounds.

covered with a layer or film.

put into effect or action.

the practice of using resources in a way that meets present needs without compromising the ability of future generations to meet their own needs.

the action of reducing the severity, seriousness, or impact of something, such as pollution or climate change.

the variety and variability of living organisms in a particular habitat or ecosystem.

the protection, preservation, management, or restoration of natural environments, ecosystems, or wildlife.