What are the different stages of soil formation?
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soli has formed in thousand of years.it involves two processes
a.Breaking of rocks
b.Decomposition of organic matter
BREAKING OF ROCKS:
factors such as air,water,temperature and humidity act on rocks and cause breaking of rocks into small pieces. this process is called WEATHERING of rocks. large pieces of rocks after being broken by weathering are transported by strong wind,rain,mountain streams and rivers.the pieces of rocks keep on rubbing against each other during transportation and break into finer sand particles.
DECOMPOSITION OF ORGANIC MATTER
in the fine soil particles formed as a result if weathering of rocks,micro organisms,algae,insects and worms grown and die. the fead parts of animals and plants (dead organic matter)are decomposed by microbes. the decomposed organic matter forms a dark and spongy product called humus which mixes up nutrients into the soil .decomposition of
dead organic matter also releases locked up nutrients into the soil.
OR simply define ..
there are 4 processes responsible to produce soil
1.earthquake or volcanic eruptions.
2.weathering of rocks
3 corrosion or decomposition of rocks by chemical processes
4. addition of humus
a.Breaking of rocks
b.Decomposition of organic matter
BREAKING OF ROCKS:
factors such as air,water,temperature and humidity act on rocks and cause breaking of rocks into small pieces. this process is called WEATHERING of rocks. large pieces of rocks after being broken by weathering are transported by strong wind,rain,mountain streams and rivers.the pieces of rocks keep on rubbing against each other during transportation and break into finer sand particles.
DECOMPOSITION OF ORGANIC MATTER
in the fine soil particles formed as a result if weathering of rocks,micro organisms,algae,insects and worms grown and die. the fead parts of animals and plants (dead organic matter)are decomposed by microbes. the decomposed organic matter forms a dark and spongy product called humus which mixes up nutrients into the soil .decomposition of
dead organic matter also releases locked up nutrients into the soil.
OR simply define ..
there are 4 processes responsible to produce soil
1.earthquake or volcanic eruptions.
2.weathering of rocks
3 corrosion or decomposition of rocks by chemical processes
4. addition of humus
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