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From coal or from petroleum

Exercise and reference answers

Upper category
Coal
Lower category
Petroleum
Items
  1. Category
    Coal
    Item
    Coke
  2. Category
    Coal
    Item
    Coal tar
  3. Category
    Coal
    Item
    Coal gas
  4. Category
    Coal
    Item
    Mothballs
  5. Category
    Petroleum
    Item
    Bitumen
  6. Category
    Petroleum
    Item
    Diesel
  7. Category
    Petroleum
    Item
    Paraffin
  8. Category
    Petroleum
    Item
    Petrol
Instructions
Send each product to the coal track or the petroleum track.

Explanation

_Source: syllabus Science, Chapter 5, Coal and Petroleum._
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