As an environmental scientist, Mike wants to address the issue of climate change. Studying which aspect will help Mike address the issue? A. higher levels of ultraviolet rays reaching Earth

B. higher number of fish eaters

C. emission of greenhouse gases

D. burning of forests

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