3. dna has two strands. if the sequence of nucleotides of one strand was known, is it possible to use that information to determine the sequence of the second strand

How has the scientific community addressed the safety of chemicals? a. chemicals are repeatedly tested, even those that have existed for a long time. b. existing chemicals are tested if they have never been tested before. c. chemicals are tested if they are suspected to have caused a problem. d. only new chemicals are tested.

Can someone me with questions 12 and 13 plz.

If an area has high air pressure and low humidity, what type of weather will it most likely have? plz !