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Cambridge IGCSE Environmental Management practice

Which statement correctly describes the general flow of warm ocean currents?

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World fisheries

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Which statement correctly describes the general flow of warm ocean currents?.

  1. A.They flow from polar regions toward the equator.
  2. B.They flow from the equator toward the poles.
  3. C.They flow only along continental shelves.
  4. D.They flow randomly without a pattern.

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Paper 1 structured question: World fisheries

Paper 1Theory6 marks

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Ocean Currents and Fish Distribution

Ocean currents can be broadly categorized as warm or cold. Warm currents flow from equatorial regions toward the poles, while cold currents flow from polar regions toward the equator. Shallow water fish populations are mainly found on continental shelves. Cold currents bring nutrient-rich waters that support abundant fish populations. The El Niño Southern Oscillation (ENSO) is a periodic warming of surface waters in the eastern Pacific Ocean that disrupts normal ocean currents and reduces fish populations along the Pacific coast of South America.

  1. a

    Outline the general locations of significant ocean currents and their temperature characteristics.

    Aim for approximately 2 distinct marking points.

    [2]
  2. b

    Explain how ENSO affects fisheries along the Pacific coast of South America.

    Aim for approximately 4 distinct marking points.

    [4]