Sustainable Something that is protected and maintained so that it can be used in the future. Sustainable development Development that is planned to meet the needs of present and future generations, e.g. the need for basic environmental, social and economic services. Sustainable development includes using and maintaining resources responsibly. Sustainability Being able to meet the needs of present and future generations by the responsible use of resources. Urbanisation Migration of people from rural to urban areas - this can lead to overpopulation and unemployment in urban areas.
Urbanisation is the main process driving the creation and ongoing remaking of cities.
The different types of plants found in an area. A control system to limit, collect and dispose of waste, through clear policies and environmental standards, e.g. reducing plastic packets. Wastewater Water left over after it has been used, e.g. in homes, gardens and factories. Water supply Water which is collected and stored, usually in dams, to be sent for use in cities and towns. Wetlands An area of land with water mostly at or near the surface, resulting in a waterlogged habitat, e.g. vleis, swamps.