Will mark brainlist
which statement best describes electrochemistry?
a it involves the study of the interconversion of chemical and electrical energy.
b it involves the study of the practical application of chemistry to solve problems.
c it involves the study of the properties of materials or tools to analyze materials.
d it involves the study of the chemical reactions that occur inside living organisms.

Tooth enamel consists mainly of the mineral calcium hydroxyapatite, ca_10(po_4)_6(oh)_2. trace elements in teeth of archaeological specimens provide anthropologist with clues about diet and diseases of ancient people. students at hamline university measured strontium in enamel from extracted wisdom teeth by atomic absorption spectroscopy. solutions with a constant total volume of 10.0 ml contained 0.726 mg of dissolved tooth enamel plus variable concentrations of added sr. added sr find the concentration of sr in the 10 ml sample solution in parts per billion = ng/ml. find the concentration of sr in tooth enamel in parts per million = mu g/g.