kasi masyadong dark ang red at ang blue at mas malaman nila na ito ay dugo kasi masyado itong atractive kaya red at blue ang gamit sa pag tratracing
blue ink is blue... not red
They use red and blue ink when tracing the flow of blood because red ink is for arteries and blue ink is for veins. This can cause a problem because people sometimes think that arteries have red blood and veins have blue blood, but this is not true.
There is no type of ink but some the colors are dark blue, green, red,
No. they have INK in them. eg. blue ink,red ink,
Red, blue, yellow and black.
You are not supposed to. It's supposed to be blue or black ink only!
it is when you try to guess a answer with a photo with ink on it usualy red and blue ink
Black ink (typed and written) is the official color for ink used in the Navy for several reasons: 1. Blue and Red inks do not copy well (Xerox) when necessary. 2. Pencils are not allowed for official documents. 3. Red ink is used for document security classification and similar uses.
I THINK that blue is used because it is the color of blood without oxygen and red is used because it is the color of blood with oxygen. Also look at your veins see what color they are.
chromotography
blue is split - composition of yellow orange and yellow red
A red Biro is a common type of ballpoint pen that writes in red ink. It is typically used for everyday writing tasks and note-taking.