How does carbon cycle through the earths systems ?

Carbon is taken from the atmosphere, as carbon dioxide, by plants through photosynthesis and incorporated into the biosphere as carbohydrates. Carbon dioxide from the atmosphere also gets dissolved in the water of the hydrosphere and utilized by photoautotrophs. This carbon held up in biosphere can be released by the atmosphere through processes such as combustion and decomposition.

sand 60

clay 10

silt 30

sandy loam should be dominated by the sand. as the amount of sand increased, the amount of slit needed to anchor the plants' roots to the sand will also be increased. even though the amount is very little, 10% part of clay is still necessary for proper oxidation.