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GCSE: Physical Geography

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  1. Climate Change revision

    Rotting waste in landfill sites The warm, waterlogged soil of rice paddies provides ideal conditions for methane production Clearing trees (deforestation) for farming 1. China 75% of coal is used for energy production CROP YEILDS CHANGING: Countries closer to the equator the more likely to suffer as crop yields failing. Tanzania & Mozambique will have longer drought periods and shorter growing seasons, meaning the could lose â of its maize crop, the forecast in India there will be a 50% decrease in the amount of land available to grow wheat, due to hotter drier weather.

    • Word count: 2527
  2. Isle of Purbeck and the nearby coastal areas.

    Erosional Landforms Old Harry's Rock Old Harry's rock is a formation of stacks and stumps made of chalk (the reason why they have been so easy to erode) below the cliffs of Ballard directly east of Studland. There were formed by erosion - this could have happened in a variety of ways, but most likely because of the sheer force of the waves smashing against what was originally a cliff face. a fault in the cliff face would be opened up by the force of the waves.

    • Word count: 1157
  3. The effects of flooding in LEDC are significantly greater than in MEDCs due to the countrys inability to cope with major disasters. Discuss

    The force of the water was so strong until it was able to transport large amount of debris. In total, 34 people died, and 420 were made homeless. (Severity of the flood in Lynmouth)( Geobytesgcse and Wikipedia November 21st 2010). Compare to Bangladesh this is nothing. For Bangladesh Over two thirds of the land area was covered by water and the capital, Dhaka, was 2m underwater. 30 million people were made homeless and 1,070 people died, health problems increased the number of deaths further.

    • Word count: 1822
  4. Life and Climate in the Equatorial Region

    The plants of a particular region, habitat, or geological period: "the desert flora gives way to oak woodlands". Of plants so the vegetation is both dense and varied. Typically in Britain there would be 4 or 5 species of trees in a forest, whilst in the same area near the equator there may be about 500 species. The equatorial rainforests also have an extremely diverse fauna. Fauna The animals of a particular region, habitat, or geological period. The Equatorial Regions and People: The traditional way of life in the equatorial rainforests depended very much on the flora and fauna of the area.

    • Word count: 521
  5. Revision notes - the Earth, causes and effects of Volcanoes and Earthquakes.

    ºC Distance (km) Thick (km) Oceanic Crust Basalt (igneous rock) Solid 2.7-3 200-400 0-8 6-8 Continental Crust Granite (igneous rock) Solid 3-3.3 200-400 0-50 30-50 Mantle Sulphides & oxides of silicon & magnesium. Semi-molten 3.3-5.7 3000 100-2900 2800 Outer Core Iron, nickel and ~ 10% sulphur and oxygen Liquid 9.9-12.2 4000-5000 2900-5100 2200 Inner Core Iron, nickel and some lighter elements Solid 12.6-13 5000-6000 5100-6378 1278 Average Density: 5.5 g/cm3 Radioactive decay of unstable elements (uranium & thorium) in the core & mantle cause geothermal heat which causes convection currents in the mantle & outer core.

    • Word count: 1715
  6. Earthquakes and volcanoes research

    In many cases, magma rises from the mantle to fill in the gap or one plate slides down to fill in the space. These types of earthquakes usually occur in the ocean (Mid-ocean ridge) not very deep in the earths crust and are not very powerful. Convergent Boundary Convergent plate boundaries arise when tectonic plates of equal or differing densities collide. If the plates have equal density, the collision causes an orogeny like the Himalayas. Mountains shoot up relatively quickly in this process over the past few million years.

    • Word count: 3963

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