Please help. I don't understand what its asking.

Brainliest ! is slowing down a car an example of acceleration? explain. - explain correctly

Astudent poured a solution of bromothymol blue indicator into three test tubes. then he placed an aquatic plant in two of the test tubes, as shown below. he placed a stopper on each test tube and placed them all in the dark for 24 hours. bromothymol blue turns from blue to yellow in the presence of co2

Aprocedure done under controlled conditions to test a hypothesis is an inquiry.