The ph indicator bromothymol blue turns yellow when co2 gas is added to a solution and blue when co2 is removed from a solution. in an experiment that tests how the intensity of light affects the rate of photosynthesis by algea, how would bromothymol blue be used

A. the constitution goes into effect. b.samuel adams agree to support ratification of a bill of rights is added. c. virginia and new york refuses to hold conversations ratify the constitution. d. states begin holding conversations to debate ratifying the constitution.