8329635
Description
Flashcards by Steven Morgan, updated more than 1 year ago
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Created by Steven Morgan
about 7 years ago
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| Question | Answer |
| Deforestation | The cutting down of trees in the rain forest |
| Causes of deforestation | Illegal logging Industrial development(Mining/HEP) Settlement Intensive farming (Ranching & soya beans) Population increase Poverty |
| How much of the rain forest has been cut down? | 20% 5.5million km2 in total 15,000 km2 a year |
| How does deforestation impact the atmosphere? | 40% of Earth's air Carbon sink Stumps release stored carbon Machines used release harmful gases |
| Valuable timber found in rainforest | Mahogney |
| How much of rain forest logging is said to be illegal? | 75% |
| Why are Asians buying up cheap land in Amazon? | Lack of timber in China. Needs timber to make charcoal Need charcoal to purify coal |
| Name a large road built across Brazil to transport goods out of the region. | Trans-Amazon highway |
| List 4 impacts of deforestation on the rain forest biome | Reduction in natives numbers Impact on atmosphere/global warming Loss of biodiversity Loss of important plants Soils become unfertile |
| What method do natives and large farmers use to clear the land? | Slash & burn |
| How big a supplier of soya beans in Brazil? | 2nd in the world |
| What is subsistence farming? | Farms only grow enough to provide form themselves --> may need another source of income. |
| Name some valuable natural resources found in the Amazon | Gold, Iron, Diamonds, HEP, Bauxite |
| Name a dam found in Brazil | Tucuri Belo Monte Balbina |
| 3 ways intensive farming harms the rainforest | Soils damaged Natural balance is disrupted (Native species die) Introduction of non native species |
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