What are 3 benefits (good things) that come from using alternative sources such as wind, solar and nuclear energy? Please help i t is PAST DUE

Which element is the least metallic between cadmium, silver, zinc, or iron?

How does the presence of oxygen affect the chemical pathways used to extract energy from glucose?

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.