How does heat transfer when a medal spoon is placed in a pot of boiling water? heat flows from the boiling water into the medal spoon
heat flows from the medal spoon into the boiling water
heat flows from the spoon to the water by radiation
heat flows from the water to the spoon by convection

please answer quick, i already know its not #2​

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.