Answer:
Pink
Explanation:
Because at first its orange then neutral its pink
Copper choruses purpose is its used as a catalyst for organic and inorganic reactions , mordant for dyeing and printing textiles, pigment for glass and ceramics, wood preservative, disinfectant, insecticide, fungicide, and herbicide. (Not sure if you want the actual purpose of water or not)
Answer:
1 litre is equal to 1000 millilitres