The half-life of carbon-14 is 5,600 years. a fossil that has one-eighth the normal proportion of carbon-14 to carbon-12 is probably years old.

Me . based on the data in your tables, did the light-colored moths have a higher or lower survival rate after the industrial revolution?

The bacteria found in soil is usually harmful and measures are taken to remove any traces of microorganisms. true or false

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