Question

If no carbon dioxide is present in your test tube it will be a______Color. If a medium amount of CO2 is present, your test tube will be a ____ color. If a large amount of CO2 is present, your test tube will be________
I really need help in this one i am bad in biology help me guys!!!

Answer 1

Black for the first, Brown for the second, And, White for the third. Hope that his helps you..

Answer 2

If no carbon dioxide is present in your test tube it will be a black color. If a medium  amount of CO2 is present it will be a brown color. If a large amount of CO2 is present it will be a white color. Really hope this helps!
:)