2 years ago

What visible light color did humans use to color jeans with?

2 answers:

8 0

Pigments for blue have come from azurite, ultramarine, smalt, indigo, a double oxide of cobalt and aluminum, and artificial chemical compounds. Indigo was used as a dye to colour cloth for trousers, which became known as blue jeans.

elixir [45]2 years ago

4 0

Answer:

pigments for blue

Explanation:

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