| A | B |
|---|
| Ecology | study how living things interact with each other and their nonliving env. |
| natural resources | natural material used by humans |
| pollution | undesired change in air, water, or soil that affects many things |
| ecological footprint | shows productive area of Earth needed to support one person in a particular country |
| agriculture | growing, breeding, caring for plants & aninmals that are used for many purposes |
| nonrenewable resources | resource that forms at a slower rate than the rate it is consumed |
| biodegradable | pollutants that can be broken down |
| environmental science | study of human interaction with the env. |
| law of supply and demand | greater demand for a limited supply, the more the thing is worth. |
| biodiversity | number and variety of species that live in an area |
| sustainability | condition in which human needs are met in such a way that a human population can survive indefinitely. |
| renewable resources | resource that can be replaced fast by natural process |
