In the environmental context, "supply" refers to the availability or provision of natural resources, goods, and services necessary for human well-being and the functioning of ecosystems.

Here are some examples of supply in the environmental context:

1. Water supply: The availability of clean and safe drinking water for human consumption.

2. Food supply: The provision of sufficient and nutritious food for human consumption.

3. Timber supply: The availability of wood from forests for construction and other uses.

4. Energy supply: The provision of energy sources such as electricity, oil, and gas for human activities.

5. Biodiversity supply: The presence and diversity of species and ecosystems that provide ecological services such as air and water purification, pollination, and soil fertility.

Similar concepts to "supply" in the environmental context might include:

1. Natural resources: Resources that come from the environment and are used by humans, such as water, timber, and minerals.

2. Ecosystem services: The benefits that people obtain from ecosystems, such as clean air and water, soil fertility, and climate regulation.

3. Sustainable use: The use of natural resources in a way that maintains their availability for future generations.

4. Resilience: The ability of ecosystems and human systems to withstand and recover from environmental shocks and stresses.

5. Conservation: The protection and management of natural resources and ecosystems for the benefit of both present and future generations.