Question

1." which Soilhas the highest amount of silt and
Organic Matters ?

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Answer 1

Answer:

alluvial soil contains various proportions of sand silt and clay.

and is most fertile

Answer 2

Answer:

The concentration of SOM in soils generally ranges from 1% to 6% of the total mass of topsoil for most upland soils. Soils whose upper horizons consist of less than 1% of organic matter are mostly limited to deserts, while the SOM content of soils in low lying, wet areas can be as great as 90%