| A | B |
|---|
| fossil fuels | includes coal, oil and natural gas. Burining these releases chemicals in the air causing pollution |
| acid rain | Occurs when rain falls through air that is polluted by burning of fossil fuels |
| Ozone layer | a layer of gases high in the atmosphere that protects the earth from dangerous ultraviolet rays of the sun. |
| depletion | the reduction of the amount of something that is present or available |
| erosion | the process by which something is gradually reduced or destroyed |
| greenhouse effect | gradual rise in the global temperatures possible due to burning of fossil fuels and destruction of forests |
| scarcity of clean water | 1 billion people do not have access to clean water due to pollution |
| deforestation | destruction of forests especially rain forests |
| Amazon Rainforest in Brazil | largest rain forest in the world. Brazil is trying to reduce its destruction of their rainforest |
| endangered species | group or species of animals that are in danger of extinction due to the destruction of their habitats |
| desertification | the change from farming land to desert due to overuse. The deserts in Africa increase at an alarming rate. |
| Nuclear Proliferation | spreading of nuclear weapons. This poses a problem and global threat |
| Nuclear Non-Proliferation | attempts to STOP the spread of nuclear weapons |
| Iran | country actively developing nuclear weapons |
| North Korea | communist country that has tested two nuclear bomb twice in the last 5 years |
| China, Britain, France, India, Pakistan and Israel | Publicly declared nuclear powers |
| interdependence | countries relying on one another. |
