One environmental problem affecting the supply of freshwater is that groundwater is being pumped from faster than it can be replaced by precipitation. The Great Lakes
Wetlands
Aquifers
Estuaries

2/6 of be by to 2/6 is to 24/72 ?

What did the pattern of earthquakes in the wadati-benioff seafloor zones show scientists? a.) earthquakes occur where the ocean floor reaches its highest temperatures. b.) many earthquakes take place 700 kilometers below the seafloor. c.) slabs of ocean floor return to the mantle in subduction zones. d.) ocean - trenches cause earthquakes.

As water is cooled from 4 c to 0 c its density