That certain image, whatever it may be would have been magnified a total of 40 times. In order to find that answer, all you have to do is divide 50mm by 1.25mm and you will end out with 40mm at the end.
The most leaching of minerals occurs from the Horizon A(the top layer) into the horizon B(the sublayer) The zone B which is commonly referred to as the subsoil layer is the zone of accumulation where rain water percolating through the soil from the top layer and it is precipitate within the subsoil(horizon B)
Meaning: A dark color or material obtained by heating organic matter or wood.
