We can describe the things which are required. These things can be required by any individual, group, country or any specific thing. We can sort out the needs into different categories including some essentials and some nonessential needs. The essential needs are those that are necessary while the nonessential needs are those that are just for support. As an example, we can take the oxygen as the essential needs for humans while the juices are nonessential for the living of humans. This is because without oxygen the humans can live in this world but without juices, humans can live.
Talking more about it, we can see that every person has their own needs which may be essential or nonessential. The poor people just need food and clothes to live while the rich person always needs the latest car and similar things. From this, we can see that the level of needs can be seen from the level of a person or family. In every aspect of life, needs are the basic thing that comes. Talking from the start, the newborn baby wants some care, the children need some education while the older age person needs some support to survive.