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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 ...

    Price £3.00more info
  • 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...

    Price £3.00more info
  • 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 ...

    Price £3.00more info
  • 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...

    Price £3.00more info
  • Environmental Studies Factsheet: 60. Cities and Climate

    Environmental Studies Factsheet: 60. Cities and Climate

      Cities have an effect on climate. This Factsheet summarises the main effects and outlines the types of question that come up in the exam. Urban Heat Islands Fig.1 shows how temperature varie...

    Price £3.00more info
  • Environmental Studies Factsheet: 61. Conditions for life on Earth

    Environmental Studies Factsheet: 61. Conditions for life on Earth

    Planet Earth is about 4.5 billion years old. About 3.9 billion years ago, life evolved and has continued to evolve. Life exists in the oceans, in the soil, on the surface, in rocks extending to severa...

    Price £3.00more info
  • Environmental Studies Factsheet: 62. Footpath Trampling

    Environmental Studies Factsheet: 62. Footpath Trampling

      The impacts of footpath trampling are readily observed on urban commons, chalk grasslands, heather uplands, sand dunes and salt marshes. Damage can be measured using simple equipment, and a ...

    Price £3.00more info
  • Environmental Studies Factsheet: 63. Ecological Carrying Capacity

    Environmental Studies Factsheet: 63. Ecological Carrying Capacity

      The concept of ecological carrying capacity comes up in many different ways in exam questions. This Factsheet reviews recent questions and looks at common mistakes that students have made....

    Price £3.00more info
  • Environmental Studies Factsheet: 64. The Environmental Consequences of Opencast and Deep Mining

    Environmental Studies Factsheet: 64. The Environmental Consequences of Opencast and Deep Mining

      Extracting minerals from the surface of the Earth or below the surface requires moving a lot of earth. Although reclamation of land disturbed by mining operations is required by law, some d...

    Price £3.00more info
  • Environmental Studies Factsheet: 65. Investigating Sand Dunes

    Environmental Studies Factsheet: 65. Investigating Sand Dunes

      Sand dunes are important habitats. In the exam, questions on sand dunes may test your understanding of succession, zonation, conservation management strategies or ecological sampling. You may...

    Price £3.00more info
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