Using the diagram below, how would you best explain what is occurring at number 3? (scroll to see the diagram)

It is water droplets that have condensed on dust particles in the process of condensation.

It is rainfall that is not absorbed into the soil and travels back to sea as surface runoff.

It is the process by which liquid changes into a gas through evaporation.

It is the process of ground water where the water has soaked into the ground.

Which of the following electromagnetic waves can create ions?

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.

The kw for water at 0 °c is 0.12× 10–14 m2. calculate the ph of a neutral aqueous solution at 0 °c.