Hi Y11,
You should still be working on human influences on the environment, but start to look at these objectives now.
4.9 understand the biological consequences of pollution of air by sulfur dioxide
and by carbon monoxide
4.10 understand that water vapour, carbon dioxide, nitrous oxide, methane and
CFCs are greenhouse gases
4.13 understand that eutrophication can result from leached minerals from fertiliser
4.14 understand the effects of deforestation, including leaching, soil erosion,
disturbance of the water cycle and of the balance in atmospheric oxygen and
carbon dioxide.
The links I posted previously will also help with these objectives, as will your textbook. Any problems please contact me. I hope to be back with you soon!
http://mrexham.com/igcse/4-ecology-and-the-environment/4-2-human-influences-on-the-environment/
Miss Maddy
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