The major evolutionary events outlined in the geologic time scale are based on what types of evidence?   a. fossils   b. dating of rocks   c. evidence of geologic events   d. all of the above

What's a recharge area? a. the part of an aquifer where groundwater meets a lake or stream b. the part of an aquifer where surface water reaches the water table c. the part of an aquifer that's located between two aquicludes d. the part of an aquifer that's located at a lower elevation