It depends how far back you are talking about. If you are talking back to the 1700s it would be cotton. If you are talking about a time period even father back than that, sorry, I can't help. Hope this helped.
Yes i do think it should be more
Pre-historic means before history; so before the written records. This also means that we have only archaeological evidence from this time, and have to interpret this evidence.
So we don't have names of gods in the pre-historic religions, only occasional statues and remains of temples. From what we do know, it seems that most prehistoric religions venerated gods related to nature: Sun, rain, animals, Harvest, earth etc.
Answer:
By funding research and development projects at many levels.
Explanation: