Trace minerals, such as iron and zinc, are necessary in small amounts, approximately milligrams daily.
a. 5000 mg
b. 100 mg
c. 50 mg
d. < 1 mg

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

i hope this

it's diluted or concentrated

in a diluted solution, you can add a lot more solute but in concentrated only a little more can be added

actually the answer is c