| Ozone depletion | | A pollutant found in refrigerators and aerosol cans |
| Walkerton | | Largest river in China |
| Soil degradation | | The removal of soil nutrients and the loss of topsoil rich in organic matter, caused by erosion |
| Salinization | | Town in Ontario where 2300 people got sick from drinking infected water |
| Chlorofluorocarbon | | Occurs when cold air is below and warm air is above, trapping pollution around a city |
| Irrigate | | A type of irrigation system, 95% |
| Biome | | Where the Oak Ridges Moraine is located (name the country) |
| Desalinization | | The different sections of the energy pyramid |
| Greenhouse Effect | | Type of air pollution resulting from the burning of fossil fuels |
| Transboundary | | 9900 joules per day, the minimum energy intake per person |
| Developing | | More than enough water |
| Temperature inversion | | Removal of salt from seawater |
| Aral | | The cause of increased amount of UV radiation reaching the Earth's surface |
| Acid Deposition | | Model that illustrates the flow of energy |
| Arable | | Countries that suffer the most from lack of water |
| Canada | | The type of salination that is often the combination of over-irrigation and drylands. Cities are often located on drylands, leaving the rich soils for agriculture. Irrigation is also now common in cities (gardens and recreation areas). |
| Trophic levels | | The maximum production of fish, grain and livestock. |
| Cassava | | The buildup of excess salts in soil, restricting amount of water and essential nutrient uptake by plants. |
| Drip | | Gases that include carbon oxide and carbon dioxide |
| Yellow | | Pollution caused by reactions between automobile exhaust and industrial emissions |
| Nitrogen oxides | | An irritating gas that forms just above the Earth's surface |
| Minimum Critical Diet | | The movement of pollutants from the U.S. to Canada |
| Ground Level Ozone | | A mixture of sulfur dioxide and nitrogen oxide pollutants reach the Earth in the form of rain or solid particles |
| Global warming | | Also called manioc, a staple in much of Africa. Tapioca starch is made from this. |
| Urban | | The effect of mostly water vapour and carbon dioxide in the atmosphere |
| Black Carbon pollution | | Water-saturated sand |
| Aquifer | | The predicted rise in average temperature in the 21st century |
| Yield threshold | | Land that can be used for growing crops |
| Smog | | A major regional group of plant/animal communities best adapted to the region's environment. |
| Surplus | | To "feed" with water |
| Energy pyramid | | Sea in Asia, where the worst water-related ecological disaster ever happened |
