| A | B |
|---|
| Deforestation | The destruction of entire forests by fire, cutting and sometimes disease. |
| Atmosphere | The layer of gases that surrounds the Earth. |
| Consumption | Humans use of natural resources. |
| Benefit | A positive consequence of human decisions regarding the environment and medicine. |
| Costs | Negative consequences of our decisions to overuse natural resources. |
| Direct Harvesting | When humans remove organisms from their natural habitats. |
| Environment | Surroundings, both living and non-living. |
| Finite resources | Natural materials that exist in limited quantities and will be gone forever once they are used unless we recycle. |
| Fossil Fuel | Examples: coal, oil, natural gas. The burning of these substances greatly contributes to global warming. |
| Global Warming | Increase in the Earth’s average temperature. |
| Industrialization | The change from a rural area to one that has factories and technology. |
| Pollution | The waste or excess products of human activity that have a negative impact on the environment. |
| Pesticide | Any chemical that is used to kill unwanted organisms. |
| Recycle | To use a material over and over again. |
| Renew Resources | To replace natural resources (trees) that have been taken from the environment and used for human need. |
