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igor_vitrenko [27]
3 years ago
10

How did people from the stone age use bitumen to make boat​

Social Studies
1 answer:
Crank3 years ago
5 0

Answer:

The method of processing bitumen was nearly universal: heat it until the gasses condense and it melts, then add tempering materials to tweak the recipe to the proper consistency. Adding minerals such as ochre makes bitumen thicker; grasses and other vegetable matter add stability; waxy/oily elements such as pine resin or beeswax make it more viscous. Processed bitumen was more expensive as a trade item than unprocessed, because of the cost of the fuel consumption.

Explanation:

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