The attendees at someting such as a meeting or a conference are the people who are present.

pollution is the process of making water,air,or land dirty,especially with poisonous chemicals.

surgery is medical treatment in which someone's body is cut open so that a doctor can repair,remove,or replace a diseased or damaged part.

A disability is permament injury, illness, or physical or mental condition that tends to restrict the way that someone can live their life.

Our responsibility is to keep the animals in captivity healthy and safe.

makei it

requires

concern

abandoned

other alternative