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How are people using the rainforests? You need to choose one of these groups who are using the Amazon rainforest in some way: a) Amazon indians (e.g. Kayapo Indians) b) Miners of Iron Ore (e.g. at the Carajas Iron Ore Mine) c) New Settlers (also known as colonists or colinistas tehse are farmers who were [...]

[Image: nDevilTV  Some rights reserved] The Cambridge IGCSE syllabus requires us to have a good understanding of the following: define total and average cost, fixed and variable cost and perform simple calculations; analyse particular situations to show changes in total and average cost as output changes; define total and average revenue and perform simple calculations; [...]