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  • Environmental Studies Factsheet: 50. Climate Change? A Comprehensive Exercise

    Environmental Studies Factsheet: 50. Climate Change? A Comprehensive Exercise

      Are we changing the climate?  Comprehension exercise Greenhouse gases (GHGs) include carbon dioxide, methane, CFCs, nitrous oxides and tropospheric ozone. Humans are increasing the&...

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  • Environmental Studies Factsheet: 51. Soil Forming Processes

    Environmental Studies Factsheet: 51. Soil Forming Processes

      Introduction Soil forms the thin surface layer of the Earth’s crust. Soils are commonly defined as “natural bodies of animal, mineral and organic constituents differenti...

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  • Environmental Studies Factsheet: 52. The Wind Farms Debate

    Environmental Studies Factsheet: 52. The Wind Farms Debate

      Energy conundrum • Britain will lose approx 45% of its current electricity generation capacity by 2020 as power stations reach the end of their working lives. Coal-fired plants...

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  • Environmental Studies Factsheet: 53. Exotic Species

    Environmental Studies Factsheet: 53. Exotic Species

      Exotic species can be introduced into new aquatic habitats throughout the world when ocean-going ships discharge their ballast water. If environmental conditions are favourable, thes...

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  • Environmental Studies Factsheet: 54. Critical Groups

    Environmental Studies Factsheet: 54. Critical Groups

      Imagine that a nuclear power station has just been built 1 mile from your house. You live on the coast and you love eating seafood like oysters and whelks. The Environment Agency (as...

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  • Environmental Studies Factsheet: 55. Presenting Data: Tables

    Environmental Studies Factsheet: 55. Presenting Data: Tables

      The student suggested that the grazing animals would trample the soil, harming its structure and reducing infiltration capacity and drainage. However, they also suggested that t...

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  • Environmental Studies Factsheet: 56. Energy Ratios in Agriculture

    Environmental Studies Factsheet: 56. Energy Ratios in Agriculture

      If we get exactly the same amount of energy out as we put in the ratio would be 1/1 so the ratio would be 1. If we get out 10 units of energy but put 20 in, we would have a ratio of ...

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  • Environmental Studies Factsheet: 57. Managing Soils: Nitrates

    Environmental Studies Factsheet: 57. Managing Soils: Nitrates

      In the exam, questions may require you to apply your understanding of the basic nitrogen cycle to agricultural practices.This Factsheet looks at how farmers are being helped to reduc...

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  • Environmental Studies Factsheet: 58. Limiting Factors in Photosynthesis

    Environmental Studies Factsheet: 58. Limiting Factors in Photosynthesis

        The rate of photosynthesis is slowed down or limited by factors such as temperature, carbon dioxide concentration and light intensity. In Environmental Science you will ...

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  • Environmental Studies Factsheet: 59. Biodiversity Update

    Environmental Studies Factsheet: 59. Biodiversity Update

      Humans have changed all of Earth’s ecosystems. • Huge areas of forest have been converted to cropland • Between 1960 and 2000, reservoir storage capacity quadrupled, and...

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