14. During a field experiment, students tested the effects of adding heavy metals to samples of water. Samples of water were taken from a pond.
Different heavy metals were then added to each sample. After the
experiment was complete, what is the best way to dispose of the
samples? *
Pour them back into the pond from which they were taken.
Pour them on soil that is located far from the pond.
Pour them on sand located along the edge of the pond
Pour them into a chemical waste container in the laboratory