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1. food supply issues

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    1. food supply issues 1. food supply issues Presentation Transcript

    • Mark your essay using the criteria below
      Explain how and why Glaciers move (15 marks)
      Explain involves a basic description plus reasons
      How and why both need addressing
      Expect reference to cold and warm based glaciers and comparisons between the 2.
      Why – Mass, slope, mass balance, water at the base (warm based only), gravity
      How – a) cold based – internal deformation (ice crystal movement)
      - Laminar flow (in layers)
      - Creep or plastic deformation
      b) Warm based – the above plus basal sliding by regelation (involves melting) or creep (plastic deformation)
      Could reference extending and compressing flow.
    • Objectives
      To understand how food supply can be considered to be Geography
      To gain an insight into the issues behind this unit
      Food Supply Issues
    • The syllabus
      Go through the syllabus and highlight all of the ideas you either:
      Know something about
      Are clueless about!
    • Short presentations
      Look at the resources on various food issues on my website.
      Take one of the resources each and answer the questions at the bottom of the page.
      You will have to present these ideas to the rest of the group.
    • Why are Food Supply Issues Geography?
    • Homework
      Read the other articles and images.
      First 2 reading sheets