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resources
| Question | Answer |
|---|---|
| natural resources | products of the earth that people use to meet their needs |
| renewable resources | cannot be used up; can be replaced |
| nonrenewable resources | cannot be replaced; limited supply |
| acid rain | rain containing high amounts of chemical pollutants |
| deforestation | cutting down trees without replanting |
| conservation | careful use of resources |
| ecosystems | places where plants and animals are dependent upon one another and their surroundings to live |
| death rate | number of people out of every 1,000 who die in a year |
| 9. birthrate – | number of children born each year for every 1,000 people |
| 10. famine – | lack of food |
| 11. population density – | average number of people living in a square mile or kilometer |
| 12. urbanization – | movement to cities |
| 3. emigrate – | move to another country |
| 14. refugee – | – person who flees to another country to escape persecution or disaster |
| 15. developed country – | country that is working toward industrialization |
| 17. atmosphere – | the blanket of gases, or air, surrounding the earth |
| 18. lithosphere – | the earth’s hard outer shell, or land |
| 19. hydrosphere – | all the water on earth |
| 20. biosphere – | all living things and the environments in which they live |
Created by:
s732094
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