3 ms·
To be fair, indigo is a blue pigment and it is present in many different plant species. (Mind you, it does not make the plant blue; it only becomes blue after e
by RoyalHenOil 2y ago
To be fair, indigo is a blue pigment and it is present in many different plant species. (Mind you, it does not make the plant blue; it only becomes blue after exposure to oxygen.)