A synthesis of groundwater ages in aquifers in the United States indicates that groundwater residence times that are greater than 11,000 years are common 11. Overexploitation of such slowly ...

Designed for Environmental Science Classes Time - 1-2 45-minute class periods Link to Lab 1 (Qualitative Lab) student page This is the Qualitative Groundwater Lab. Students will observe videos of the ...

If your lawn struggles with compacted soil, patchy grass, or poor drainage, lawn care experts also point to aeration as the best solution. While traditional core aeration involves removing plugs ...