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HEI
| Question | Answer |
|---|---|
| Global warming | A gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, chlorofluorocarbons, and other pollutants. |
| Climate change | A change in global or regional climate patterns, |
| Energy resources | Sunlight, wind, rain, tides, waves and geothermal heat. |
| Green resources | Renewable energy. |
| Non-renewable resources | Renewable energy is generally defined as energy that comes from resources which are naturally replenished on a human timescale such as sunlight, wind, rain, tides, waves and geothermal heat. |
| Renewable resources | Nonrenewable resources in that their use is not sustainable because their formation takes billions of years. |
| Acid rain | Rainfall made sufficiently acidic by atmospheric pollution that it causes environmental harm. |
| Pollution | The presence in or introduction into the environment of a substance or thing that has harmful or poisonous effects. |
| Adapt | Become adjusted to new conditions. |
| Depend | Rely on. |
| Modify | Make partial or minor changes, typically so as to improve it or to make it less extreme |
| Natural disaster | A natural event such as a flood, earthquake, or hurricane that causes great damage or loss of life. |
| Deforestation | Deforestation is the clearing of trees, transforming a forest into cleared land. |
| Reforestation | The action of renewing forest cover (as by natural seeding or by the artificial planting of seeds. |
| Positive | A good, affirmative, or constructive quality or attribute. |
| Negative | Consisting in or characterized by the absence rather than the presence of distinguishing features. |