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Human Impact
| Question | Answer |
|---|---|
| The _____ is the largest rainforest in the world. It has more _______ than anywhere else in the world. | Amazon/species |
| Trees are cut down to clear land for | Agriculture |
| Trees provide | Timber |
| Is responsible for half the deforestation | Brazil |
| Deportation is responsible for ______ of CO2 emissions | 20% |
| Trees can be thought of as CO2 sinks. They absorb ___ and release _____ | CO2/oxygen |
| When trees are cut down they ______ CO2 back into atmosphere | Release |
| There are fewer trees ____ co2 | Absorb |
| Loss in ____ -70% of the world species are found in tropical regions | Biodiversity |
| Reduce emissions for deforestation is an injustice to slow the rate of deforestation | RESS+ |
| Payments for ecosystem where farmers are paid for not feeling (cutting down) | PES |
| Dams are Very ____ to build | Costly |
| Once built they can generate a lot of free | Electricity |
| There’s price to be paid and not just an _____ price | Economic |
| People are now questioning whether the _______ price of dam is worth it | Environmental |
| Water build up inside down the dam and this allows organic material to _______ where it would naturally be washed away in a river | |
| Algae blooms use up all the _____ in the water so fish and other organisms cannot survive | Oxygen |
| Dams hold back up _____ | Sediment |
| Rivers downstream can then _______ more of the river bank than they normally would | Erode |
| The ________ in Egypt holds back 132 cubic km of water | Aswan dam |
| Before it was built the Nile flooded and deposited sediment along the floodplains of the Nile. This made the land very ____ | Fertile |
| Now almost all that sediment is behind the Dam and farmers use | Fertilizers |
| This resulted in a decline _______ and changes to the floodplain and coastal _______ | Soil productivity/erosion |
| The Los of nurturing rich sediment flowing into the Mediterranean is disputed to be one of the cause of a decline in the _______population | Anchovy |
| Because there’s no more flooding the ______ population has declined significantly as many of the fish are migratory and can’t Po’s the dam | Fish |
| The seal sea is now a ____ | Desert |
| The Aral Sea was fed by two rivers but the Soviet govt diverted these rivers to _______ | Mirigate farmland |
| When we think of _____ we think dry hot places | Desert |
| Land desertification means _________ resulting in loss of value to humans | Land degradation |
| Although the _____ driver, _______ impact the land | Climate/humans |
| The main human drivers for land desertification are over ______, over use of ______ and mechanization | Grazing \chemical |
| This chart shows the population growth to date as well as the projected growth to 2100. In 2020 is over _________ a threefold increase in 70 years | 7 billion |
| Obviously the demand for food, water and energy has increased with the population Growth. Demand for ______has grown almost 5 times since 1960 | Meat |
| This increases the demands in _______to produce more ____ | Agriculture/Food |
| 70% of freshwater is used for | Agriculture |
| Almost 78% of the nutrient rich population in our rivers and oceans is caused by | Agriculture |
| Land degradation and desertification are reversible. That’s good news fighting this problem means that we prevent reduce land. _____, _______ degraded land and. _______ the certified land. | Degration/rehabilitate/ reclaim |
| _____ Farming which ______ human impacts on the ecosystem | Organic/minimize |
| _______ agriculture is farming system based on____ disturbance plants diversification | Conservation\ mechanical |
| Cars powered generation incinerators and industry all contributes to contribute to outdoor | |
| _________. P.m. is on the rise p.m. causes. _____ diseases and the elderly are officially suspectible since these parties are so small and they can easily be held and enter | Small particular matter/respiratory |
| P.m. comes from a variety of sources such as the construction sites fields, smokestacks, etc., most of formed from _________ interactions with sulfur dioxide and nitrogen oxide oxide from industry atom | Chemical |
| The rise and p.m. may be due to the increase in ____ and increase use of____ | Wildfires/natural gas |
| Build up | |
| Pollution |
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Vanessamh853
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