Help pls :’)

what are two ways people are trying to maintain biodiversity

Convert 0.14 kilograms to grams.grams

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

Describe the layers of the suns atmosphere?