Sunday 21 April 2013

4.13 understand how human activities contribute to greenhouse gases

Many of the processes that we carry out in homes and factories produce or release gasses with the greenhouse effect. Many things release greenhouse gasses when they are burned; reactions can create greenhouse gasses; some plants and animals that we keep a lot of naturally release greenhouse gasses. Processes that produce greenhouse gasses include burning fossil fuels and keeping large amounts of live stock.
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2 comments:

  1. Mike Tsang26 June 2017 at 04:06

    The Biology Syllabus has changed…

    Here is a New blog for the 2017 Syllabus:

    http://igcse-biology-2017.blogspot.hk

    ReplyDelete
  2. SophieRice27 June 2017 at 05:58

    more at

    http://igcse-biology-notes.blogspot.hk/2017/06/413-understand-how-human-activities.html

    ReplyDelete

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