{"id":12864,"date":"2016-09-13T22:50:41","date_gmt":"2016-09-13T22:50:41","guid":{"rendered":"http:\/\/course.oeru.org\/csf101\/?page_id=12864"},"modified":"2016-09-13T22:50:41","modified_gmt":"2016-09-13T22:50:41","slug":"tasks-holocene-to-anthropocene-challenge","status":"publish","type":"page","link":"https:\/\/course.oeru.org\/csf101\/learning-pathways\/from-the-holocene-to-the-anthropocene\/tasks-holocene-to-anthropocene-challenge\/","title":{"rendered":"Tasks – Holocene to Anthropocene challenge"},"content":{"rendered":"
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Complete the tasks listed below:\n<\/p>\n

Think about the ways that humans have affected the natural ecological systems and consider the following questions:\n<\/p>\n

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  1. What human activities move chemical materials from the Earth\u2019s crust and release them into the biosphere?\n<\/li>\n
  2. What chemicals are involved?\n<\/li>\n
  3. What volumes of material are involved?\n<\/li>\n
  4. How do they end up in the biosphere and what is the effect of releasing them into natural systems?\n<\/li>\n
  5. How are these materials returned to the Earth\u2019s crust to retain the biosphere’s balanced chemical composition?\n<\/li>\n
  6. What new chemical materials have humans developed and released into the biosphere?\n<\/li>\n
  7. What examples can you think of?\n<\/li>\n
  8. Where are these chemicals used?\n<\/li>\n
  9. What happens to them after they have been used?\n<\/li>\n
  10. How are these synthetic chemicals broken down into substances that nature can process?\n<\/li>\n
  11. Other than the movement of chemicals, how have humans physically affected natural systems like forests, wetlands, oceans, rivers and soils?\n<\/li>\n
  12. What ecosystem functions have been affected?\n<\/li>\n
  13. What impacts might this have on the biosphere and what might it mean for us?\n<\/li>\n
  14. What reliance does our economy and society have on the activities you\u2019ve identified above?\n<\/li>\n
  15. What are the implications of this?\n<\/li>\n<\/ol>\n

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    <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/div>\n<\/div>\n<\/div>\n
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