Pollution
A selection of pollution related powerpoint.
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  • Lesson-20.-Distillation-of-Air.pptx
  • Lesson-21-Combustion.pptx
  • Lesson-22-Combustion-Practical-1.pptx
  • Lesson-23-Combustion-Practical-2.pptx
  • Lesson-24-Global-Warming.pptx
  • Lesson-25---Acid-Rain.pptx

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Created: May 14, 2017

Presentation

pptx, 415 KB

Lesson-20.-Distillation-of-Air

Presentation

pptx, 3 MB

Lesson-21-Combustion

Presentation

pptx, 1 MB

Lesson-22-Combustion-Practical-1

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