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  2. List of sinkholes - Wikipedia

    en.wikipedia.org/wiki/List_of_sinkholes

    The Great Blue Hole, a giant submarine sinkhole, near Ambergris Caye, Belize. The following is a list of sinkholes, blue holes, dolines, crown holes, cenotes, and pit caves. A sinkhole is a depression or hole in the ground caused by some form of collapse of the surface layer.

  3. Sinkhole - Wikipedia

    en.wikipedia.org/wiki/Sinkhole

    The Red Lake sinkhole in Croatia. A sinkhole is a depression or hole in the ground caused by some form of collapse of the surface layer. The term is sometimes used to refer to doline, enclosed depressions that are also known as shakeholes, and to openings where surface water enters into underground passages known as ponor, swallow hole or swallet.

  4. Pit latrine - Wikipedia

    en.wikipedia.org/wiki/Pit_latrine

    A pit latrine generally consists of three major parts: a hole in the ground, a concrete slab or floor with a small hole, and a shelter. [7] The shelter is also called an outhouse. [10] The pit is typically at least three meters (10 ft) deep and one meter (3 ft) across. [7]

  5. NASA highlights unusual holes in sky near South Florida ...

    www.aol.com/nasa-highlights-unusual-holes-sky...

    The holes in the sky may be more visible in the winter when the freezing layer in the atmosphere is lower. NASA highlights unusual holes in sky near South Florida called fallstreak holes Skip to ...

  6. Privy digging - Wikipedia

    en.wikipedia.org/wiki/Privy_digging

    Adept privy diggers develop considerable skill interpreting the faint residues which come up on the end of a probe and the subtle noise variations encountered while sliding it in and out of the ground. [6] Test digging involves making a small hole, and going down a few feet, to determine that a probe reading is accurate.

  7. Borehole - Wikipedia

    en.wikipedia.org/wiki/Borehole

    A borehole is a narrow shaft bored in the ground, either vertically or horizontally. A borehole may be constructed for many different purposes, including the extraction of water ( drilled water well and tube well ), other liquids (such as petroleum ), or gases (such as natural gas ).

  8. 7 Landscaping Tips That Can Help Keep Water Out of Your ...

    www.aol.com/7-landscaping-tips-help-keep...

    Landscaping to prevent water from damaging your home or flooding your basement is a smart strategy. Learn seven easy steps that everyone, from gardening newbies to seasoned pros, can try.

  9. Crack in the Ground - Wikipedia

    en.wikipedia.org/wiki/Crack_in_the_Ground

    Crack in the Ground marks the western edge of this small, volcano-tectonic depression. The crack is the result of a tension fracture along a hingeline produced by the draping of Green Mountain lava flows over the edge of upthrown side of the concealed fault zone. The fissure is located at the southwest corner of Four Craters Lava Field. [2]