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8 Cards in this Set
- Front
- Back
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How are levèes formed? |
Levèes are formed after many floods. When a river floods, water is spread across the floodplain. In the river water are grains of sediment and when the flood drys up, the sediment is left on the river bank. After many floods, the pile of sediment gets bigger. |
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Floodplain |
The floodplain is found in the lower course of the the river where the river often floods. No trees grow here because of the risk of flood and being washed away. |
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Mining in Antarctica - challenges of development |
Mining is illegal in Antarctica due to the fact it could affect the wildlife. Also, the very cold and unpredictable weather makes it hard to mine. Bad weather could result in a dangerous accident. |
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Mining in Antarctica - economic benefits |
It is thought Antarctica has lots of valuable metals, ore and fossil fuels. Examples are oil, gas, coal, iron and chronium. Selling these will make up for the money lost in transport and mining. |
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Fishing in Antarctica - challenges of development |
Fishing in certain areas and fishing certain fish is illegal. Also too much fishing could lead to overfishing and that could effect the food chain and predators. The equipment also damages habitat and can kill other animals. |
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Fishing in Antarctica - economic benefits |
Dish are not hard to find and krill can be caught (which is hard to find). Other fish such as Antarctic tooth fish, makrel and ice fish can be caught and have high omega 3 levels |
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Tourism in Antarctica - challenges of development |
Traveling to Antarctica is expensive and dangerous and too many tourists can effect the wildlife and can effect breeding. Also no big boats are allowed into Antarctica. |
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Tourism in Antarctica - economic benefits |
There are lots of activities in Antarctica such as ice walking, camping and kayaking. Companies also gain lots of money on travel and activities as most people who can afford to go are rich. |
