If you choose a plant that is hardy in Zones 7 to 9 and you live in Zone 4,
A. you need a greenhouse to grow this plant.
B. you cannot grow this plant.
C. your climate is too warm for the plant.
D. the plant will thrive.

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