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When the soil dries out, it contracts vertically, assisting the soil slowly down a slope. [ 5 ] A common geomorphological, chiefly dependent on the local hydrology such as hydraulic action , at the base of the Lower Greensand is an escarpment, where the Hythe Beds overlie the Atherfield and Weald Clays, which is particularly susceptible to ...
Also called Indianite. A mineral from the lime-rich end of the plagioclase group of minerals. Anorthites are usually silicates of calcium and aluminium occurring in some basic igneous rocks, typically those produced by the contact metamorphism of impure calcareous sediments. anticline An arched fold in which the layers usually dip away from the fold axis. Contrast syncline. aphanic Having the ...
Roman numerals: for example the word "six" in the clue might be used to indicate the letters VI; The name of a chemical element may be used to signify its symbol; e.g., W for tungsten; The days of the week; e.g., TH for Thursday; Country codes; e.g., "Switzerland" can indicate the letters CH; ICAO spelling alphabet: where Mike signifies M and ...
This glossary of geography terms is a list of definitions of terms and concepts used in geography and related fields, including Earth science, oceanography, cartography, and human geography, as well as those describing spatial dimension, topographical features, natural resources, and the collection, analysis, and visualization of geographic data.
An American-style 15×15 crossword grid layout. A crossword (or crossword puzzle) is a word game consisting of a grid of black and white squares, into which solvers enter words or phrases ("entries") crossing each other horizontally ("across") and vertically ("down") according to a set of clues. Each white square is typically filled with one ...
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Soil is a naturally occurring granular covering on the surface of Earth, capable of supporting life. Soil may also refer to: Potting soil, a mixture of organic and mineral materials used as an alternative to soil when growing plants in containers; Lunar soil, a similar granular covering on the Moon (though without Earth soil's organic components)
[5] [77] Every square mile of surface soil, to a depth of 6 inches (2.6 km 2 to a depth of 15 cm), contains about 1 gram of radium, which releases radon in small amounts to the atmosphere. [3] It is estimated that 2.4 billion curies (90 EBq) of radon are released from soil annually worldwide. [78] This is equivalent to some 15.3 kilograms (34 lb).