In a watershed experiment, runoff mixes with food coloring and stains the water at the bottom. What does the stained water represent?

About 140,000 japanese died in this japanese city when americans dropped an atomic bob at the end of world war ii

In upholding louisiana's separate car act, the supreme court claimed thatsegregation was not the same as discriminationthe fourteenth amendment did not apply to southern statesdiscrimination was necessary in order to maintain public ordero segregation was unconstitutional based on the fourteenth amendment

What is the relationship between groundwater and aquifers?