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2. Drainage equation - Wikipedia

   en.wikipedia.org/wiki/Drainage_equation

   One would not want the water table to be too shallow to avoid crop yield depression nor too deep to avoid drought conditions. This is a subject of drainage research. The figure shows that a seasonal average depth of the water table shallower than 70 cm causes a yield depression [5] The figure was made with the SegReg program for segmented ...

3. Water table - Wikipedia

   en.wikipedia.org/wiki/Water_table

   Cross section showing the water table varying with surface topography as well as a perched water table Cross-section of a hillslope depicting the vadose zone, capillary fringe, water table, and the phreatic or saturated zone. (Source: United States Geological Survey.) The water table is the upper surface of the zone of saturation.

4. Vadose zone - Wikipedia

   en.wikipedia.org/wiki/Vadose_zone

   Cross section showing the water table varying with surface topography as well as a perched water table The vadose zone , also termed the unsaturated zone , is the part of Earth between the land surface and the top of the phreatic zone , the position at which the groundwater (the water in the soil's pores) is at atmospheric pressure ("vadose" is ...

5. Step Up (TV series) - Wikipedia

   en.wikipedia.org/wiki/Step_Up_(TV_series)

   Step Up (previously titled Step Up: High Water) is an American drama television series, based on the Step Up film series. It premiered on January 31, 2018, on YouTube Red . The series was created by Holly Sorensen , who also serves as an executive producer alongside Channing Tatum and Jenna Dewan .

6. All of these Black Friday deals would make very good gifts - AOL

   www.aol.com/lifestyle/all-of-these-black-friday...

   This three-piece set comes with everything one needs for holiday cooking: 12.5-inch dish holds that holds 4 quarts; a 10-inch dish that holds 2.5 quarts; and a 7.5-inch dish that holds 1.1 quart ...

7. Water fluoridation in the United States - Wikipedia

   en.wikipedia.org/wiki/Water_fluoridation_in_the...

   The CDC recommends water fluoridation at a level of 0.7–1.2 mg/L, depending on climate. The CDC also advises parents to monitor use of fluoride toothpaste, and use an alternative water source other than a natural water source with a fluoride concentration above 2 mg/L, for children up to the age of 8.