Why does ice stay on top of oceans of sinking to the bottom ?

Which taxon group is more specific, in regards to organisms that are in that group? mammalia animalia

These are the components of the reservoirs of carbon that are exchanged in our environment.

Dawn mistakenly took a multivitamin intended for men that contains 90 mg of vitamin c (or 100% of the vitamin c rda for men). if the multivitamin was dawn’s only source of vitamin c for the day, what percentage of the women’s vitamin c rda did she consume? a. 52% b.83% c.100% d.120%