GCSE Geography Water World

What is eutrophication?
Eutrophication is the process where toxic substances run into rivers, and depletes the oxygen there due to the growth of algae and other bacteria
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What does domestic mean?
Taken from the home place rather than from a foreign place or country
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How does over-cultivation lead to desertification?
Over-cultivating the land exploits the land, causing the soil to erode. This means that no more crops can be grown and the land is deserted
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What does quality mean?
How good something is
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What is an aquifer?
A store of water e.g a lake or river
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What is deforestation?
The chopping down of trees for human benefit
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What is agriculture?
The business of farming
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What are large scale projects?
Large scale projects are expensive projects paid for by the government. They normally include large reservoirs and can have negative impacts on the evironment
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What are small scale projects?
Small scale projects are normally funded by charities or non-government organisations such as Water Aid. The projects are quite easy to set up, costing less, and are managed by locals
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What is the Large Scale Case Study?
The Three Gorges Dam, River Yangtze, China
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What is the Small Scale Case Study?
Mali's Pumpkin Tank, funded by Water Aid
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What does quantity mean?
The amount of something
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How much percent of the Earth's water is stored in lakes and rivers?
1%
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What is the water cycle?
A cycle showing how water is stored and transferred
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What is infiltration?
The process where water goes into the soil
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What is desertification?
The process where land dries up and vegetation starts to die. Plants can no longer grow and so farmers seek other areas of land to grow his crops
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How does industrial pollution effect water quality?
Chemicals from industry run into rivers and lakes, cause eutrophication and the water becomes heavily polluted, which can cause cancer. For example, creating jeans in industry
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How does sewage disposal effect water quality?
Sewage is thrown into rivers and lakes, causing eutrophication. The sewage thrown in causes water bourne diseases to spread
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What is evaporation?
The process of water turning into water vapour and going into the clouds
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What is condensation?
The process where water vapour turns into water droplets and falls as precipitation
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What is precipitaion?
Water that falls to the ground from the clouds
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What is transpiration?
The loss of water through evaporation at the leaves in a plant
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What is transportation?
The movement of water in the hydrological cycle
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How does deforestation lead to desertification?
The cutting down of trees limits the amount of evapotranspiration and the soil will become infertile, making plant growth impossible
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How does climate change lead to desertification?
Due to increased population, there is in increase in industry and the production of more greenhouse gases. This warms up the atmosphere and prevents plants from growing in certain conditions
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What is a fertiliser?
A fertiliser is a chemical to increase plant fertility
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What is overabstraction?
Using up too much water from an aquifer
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How does deforestation effect water quantity?
The chopping down of trees causes a reduction in transpiration and eaoptranspiration, effecting the amount of water in the hydrological cycle
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How much of the Earth's water is stored in oceans, ice caps, and glaciers?
99%
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What is a reservoir?
A lake that is being used to store water
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What happens in the water cycle?
The sun heats the oceans, and some water will evaporate into the clouds. The air currents move the clouds and the decrease in temperature results in the condensing of the vapour, causing precipiation. This runs on the ground as surface run off
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What is soil erosion?
The wearing away of the soil
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How does overgrazing lead to desertification?
Increased cattle rearing on land and growth of crops causes the soil to erode and become infertile
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What does industrial mean?
Created in industry
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What is a slurry?
A liquid mixture of manure
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How does overabstraction of land effect water quantity?
The overabstraction of the River Thames (for example) causes a drop in river flow
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Why is water unreliable?
The weather cycle frequently changes and some places will experience droughts whilst others will recieve huge storms. Global warming has effected the amount of rainfall in areas too
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What is percolation?
The process of water moving through the soil underground
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What is irrigation?
A supply of water to crops
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How does a reservoir effect water quantity?
Reservoirs like Lake Chad are drying up. This results in spread of disease and lack of plant growth
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What is the Niger Case Study?
Niger is experiencing loss of 350,000 hectares a year due to flooding, and 3 million have suffered from starvation. Over 10,000 farmers have had to farm elsewhere due to land infertility
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How does intensive agriculture effect water quality?
Lots of fertiliser and pesticide is used in agriculture, and this runs into local lakes, causing eutrophication
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How does water move through different stores?
Overland flow and groundwater
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Other cards in this set

Card 2

Front

What does domestic mean?

Back

Taken from the home place rather than from a foreign place or country

Card 3

Front

How does over-cultivation lead to desertification?

Back

Preview of the front of card 3

Card 4

Front

What does quality mean?

Back

Preview of the front of card 4

Card 5

Front

What is an aquifer?

Back

Preview of the front of card 5
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