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  2. List of quarries in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_quarries_in_the...

    Graniteville is home of its owner, the 1885-founded Rock of Ages Corporation, since 2016 part of Polycor, Inc., the largest producer of marble and granite in North America. Quarrying continues, and the quarry may be visited by the public.

  3. Soil in the United States - Wikipedia

    en.wikipedia.org/wiki/Soil_in_the_United_States

    Although the United States has many sites with contaminated soils, it has been a leader in defining and implementing standards for cleanup. [4] Each year, thousands of sites complete soil contamination cleanup, some by using microbes that “eat up” toxic chemicals in soil, [5] many others by simple excavation and others by soil vapor extraction, air stripping, or solvent extraction, with ...

  4. List of U.S. state soils - Wikipedia

    en.wikipedia.org/wiki/List_of_U.S._state_soils

    This is a list of U.S. state soils.A state soil is a soil that has special significance to a particular state.Each state in the United States has selected a state soil, twenty of which have been legislatively established.

  5. History of public health in the United States - Wikipedia

    en.wikipedia.org/wiki/History_of_public_health...

    Special emphasis was given to expensive sanitation programs to remove masses of dirt, dung and outhouse production from the fast-growing cities or (after1900) mosquitos in rural areas. Public health reformers before 1900 took the lead in expanding the scope, powers and financing of. local governments, with New York City and Boston providing the ...

  6. The 4,000-Year-Old Insect-Created Structure That Can Be Seen ...

    www.aol.com/4-000-old-insect-created-134900770.html

    Out of thousands of species of termites, only the ones residing in Africa, Australia, Asia, and South America build mounds, or above-ground structures made from mud, soil, and termite saliva.

  7. Terra preta - Wikipedia

    en.wikipedia.org/wiki/Terra_preta

    The production of biomass for two crops (rice and Vigna unguiculata) increased by 38–45% without fertilization (P < 0.05), compared to crops on fertilized ferralsol. [ 25 ] Amending with charcoal pieces approximately 20 millimeters (0.79 in) in diameter, instead of ground charcoal, did not change the results except for manganese (Mn) , for ...

  8. Ultisol - Wikipedia

    en.wikipedia.org/wiki/Ultisol

    Map of the United States showing what percentage of the soil in a given area is classified as an Ultisol-type soil. The great majority of the land area classified in the highest category (75%-or-greater Ultisol) lies in the South and overlays with the Piedmont Plateau, which runs as a diagonal line through the South from southeast (in Alabama) to northwest (up into parts of Maryland).

  9. Dirt - Wikipedia

    en.wikipedia.org/wiki/Dirt

    A season of artworks and exhibits on the theme of dirt was sponsored by the Wellcome Trust in 2011. The centrepiece was an exhibition at the Wellcome Collection showing pictures and histories of notable dirt such as the great dust heaps at Euston and King's Cross in the 19th century and the Fresh Kills landfill which was once the world's largest landfill.