Question

How many colours does a rainbow have?​

Answer 1

Answer:

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Explanation:

seven colours

He coined the idea that there are seven colours in a spectrum: red, orange, yellow, green, blue, indigo and violet (ROYGBIV).

Answer 2

Answer:

7 colours

Explanation:

He coined the idea that there are seven colours in a spectrum: red, orange, yellow, green, blue, indigo and violet (ROYGBIV).