| A | B |
|---|
| cost - benefit analysis | may be used to determine how much to spend to control pollution |
| sustainability | human needs may be met indefinitely |
| “Tragedy of the Commons” | “If I don’t use this resource, someone else will.” |
| developed nation | diverse individual economies |
| law of supply and demand | helps determine a product’s worth |
| shared natural resources | Earth’s “modern commons” |
| ecological footprint | amount of land and ocean area needed to support one person |
| developed nations | have higher average incomes and slower population growth. |
| developing nations | have lower average incomes and faster population growth |
| the United Nations | classifies countries as developing or developed |
| What type of economy does a developed country have? | a diverse industrial economy |
| What type of economy does a developing country have? | an agriculture-based economy |
| How do the social support systems of developed countries differ from those of developing countries? | Developed countries have stronger social support systems. |
| What factor affects environmental problems and the number of choices a society can make? | the unequal distribution of wealth and resources |
| “spaceship Earth” | Earth as a “closed system” |
| biodiversity | the number and variety of species that live in the area |
| biodegradable | may be broken down by natural processes |
| renewable resource | Wood from trees, energy from the sun |
| nondegradable | mercury, lead, and some plastics, won't break down |
| environmental science | the study of the air, water, and land surrounding an organism or a community, which ranges from a small area to Earth’s entire biosphere |
