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Unit 66. Global Challenges

6. Global Challenges

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Lesson 1Unit 6 overview: Global Challenges1 pointsLesson 26.1.1 Extracting Metals4 pointsLesson 36.1.2 Biological Extraction Methods4 pointsLesson 46.1.3 Life Cycle Assessment4 pointsLesson 56.1.4 Recycling Materials4 pointsLesson 66.2.1 Crude Oil and Fractional Distillation5 pointsLesson 76.2.2 Cracking5 pointsLesson 86.3.1 Origins of the Atmosphere4 pointsLesson 96.3.2 The Greenhouse Effect8 pointsLesson 106.3.3 Climate Change4 pointsLesson 116.3.4 Atmospheric Pollutants4 pointsLesson 126.3.5 Potable Water6 points