because blue is for the water and green for land
Green is grass, blue is water..
There is some Blue green algae in nearly all water especially fresh water.
Green water has more oxygen, than blue water. In the early years of our planet's history, our water was green, because the earth had a higher oxygen content.
blue
blue-green
AQUA
The same reason the sky is blue, it just is
You could boil the solution, leaving you with the blue-green chemical.
The blue due to the presence of liquid water. The green is due to the presence of plant life.
Blue and green
Pure water is evaporated faster.