Terms : Hide Images
| 394188797 | NASA | National Aeronautic and Space Administration - a US government agency in charge of the space program | 0 | |
| 394188798 | Global warming | an increase in the average temperature of the earth's atmosphere (especially a sustained increase that causes climatic changes) | 1 | |
| 394188799 | Ozone Layer | a layer in the stratosphere (at approximately 20 miles) that contains a concentration of ozone sufficient to block most ultraviolet radiation from the sun | 2 | |
| 394188800 | Acid Rain | rain containing nitric and sulfuric acids | 3 | |
| 394188801 | World Trade Organization | An international agency which encourages trade between member nations, administers global trade agreements and resolves disputes when they arise. | 4 | |
| 394188802 | European Union | international organization comprised of Western European countries to promote free trade among members | 5 | |
| 394188803 | Detente | relaxation of tensions between the United States and its two major Communist rivals, the Soviet Union and China | 6 | |
| 394188804 | Perestroika | a policy initiated by Mikhail Gorbachev that involved restructuring of the social and economic status quo in communist Russia towards a market based economy and society | 7 | |
| 394188805 | Glasnot | policy in the Soviet Union of speaking openly about problems. | 8 | |
| 394188806 | NAFTA | A trade agreement between Canada, the United States and Mexico that encourages free trade between these North American countries. | 9 |
