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Of Mice and Men is a 1937 novella written by American author John Steinbeck. [ 1 ] [ 2 ] It describes the experiences of George Milton and Lennie Small, two displaced migrant ranch workers, as they move from place to place in California , searching for jobs during the Great Depression .
The 1937 production opened while the novel was still on best seller lists. [1] At the time, George S. Kaufman was the top director in the country. [2] While the play follows the novel closely, Steinbeck altered the character of Curley's Wife, perhaps in response to criticisms from friends.
A soil scientist examining horizons within a soil profile. Soil science is the study of soil as a natural resource on the surface of the Earth including soil formation, classification and mapping; physical, chemical, biological, and fertility properties of soils; and these properties in relation to the use and management of soils.
Soil biology is the study of microbial and faunal activity and ecology in soil. Soil life, soil biota, soil fauna, or edaphon is a collective term that encompasses all organisms that spend a significant portion of their life cycle within a soil profile, or at the soil-litter interface.
Piles of worm castings atop existing soil in a garden. He returned to London on October 21, and prepared a paper on worms forming mould. [4] The paper on the role of earthworms in soil formation was read out by Darwin at the Geological Society of London on 1 November 1837. [5]
Soil develops through a series of changes. [2] The starting point is weathering of freshly accumulated parent material.A variety of soil microbes (bacteria, archaea, fungi) feed on simple compounds released by weathering and produce organic acids and specialized proteins which contribute in turn to mineral weathering.
If the soil particles in a sample are predominantly in a relatively narrow range of sizes, the sample is uniformly graded. If a soil sample has distinct gaps in the gradation curve, e.g., a mixture of gravel and fine sand, with no coarse sand, the sample may be gap graded. Uniformly graded and gap graded soils are both considered to be poorly ...