Answer by Dan Dsp from runescape com.
the sky i believe.
Water.
its where water is you its blue/clear
Because when the sun hits the earth there is a chemical that makes the colour of a river blue.
Blue on a map usually denotes water. Blue lines could be streams and rivers.
Its not stagnant. Whether its from rain or underground rivers the water must be clear/clean. Dirty water is not clear, obviously.
there is salt water which makes up the worlds oceans and there is fresh water that make up certain streams and rivers
Green is grass, blue is water..
It's not really blue, it just appears that way because of the reflection of the sky on the water.
the conventional symbol or colour for a lake or any water body is blue
It normally means the water(rivers and streams) thanks for asking
Blue, in the case of water in our 4 oceans, seas, rivers, and lakes.
The Caribbean has very clear blue water because it is clean. This water has not been overly polluted by humans yet.