Sustainability refers to sustainable development or a development that is not limited to the present generation but also to the generations to come. Scientists say that the way we are using the resources, it seems that the resources will get exhausted soon and will not be left for future generations. If we have to make development sustainable, that is, to continue, we have to use resources in such a way that the process of development continues and resources can be saved for future generations. The concept of sustainability is important for development because of the following reasons

1. It takes into account the future requirements.

2 . It encourages judicious use of natural resources.

3. It gives importance to quality life.