Please only comments if you have the answer, I don’t need no link!! I’ll give

We can also apply the equation for residence time to a single component of a fluid, such as carbon dioxide (CO2). Assume
that the residence time of CO2 in the atmosphere is six years and the mass of CO2 in the atmosphere is 3 x 1015
kilograms. If these estimates are correct, what is the mass flow rate of CO2 into and out of the atmosphere? Assume the
atmosphere is at steady state. Write your answer in scientific notation, and be sure to include the correct units.

"1. it should be, it has been for about 20 years, and it's really not much different in the end than breeding animals to have particular traits. there are always concerns about genetically engineered animals/plants affecting the environment in unexpected negative ways, but i can't think of an example where the fears didn't turn out to be baseless.  

first, as you point out, it would be a great advance in pharmacology, to be able to tailor drugs and their doses to me. the pros involve better medical treatment. the cons involve privacy issues like insurance companies denying coverage to people with genetic risk factors. looking at dna markers wouldn't affect the frequency of genetic diseases, but it would allow detection of them earlier. and ok, actually i suppose that if people used this information to avoid having children with genetic diseases, some might decrease in frequency."

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