Sustainability means the ability to conserve,maintain and support all the things we need to survive so that we can have it for a longer time. Some people don't have any ting to eat and some people have a little and some other people have a lot to eat . These people that don't have anything to eat have to steal to have something to survive . Also some people don't have electricity . There 76% that have electricity. There 24% that don't have electricity .Some people have a lot of food,electricity and shelter and don't share with people that don't have .