Which of the following is an abiotic factor that affects plant growth?
a.)taller plants
b.)bees
c.)worms
d.)temperature range

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