Lithosphere

^Soil,the basis for agriculture to provide us with food
^Stone,sand and gravel,used for construction
^Microscopic flora,small soil fauna and fungi in soil,important livingorganisms of the Lithosphere which break down plant litter as well as animal wastes to provide nitrients for plants.
^Alarge number of minerals on which our industriesare based.
^Oil,coal and gas,extracted from undr ground sources .They provide power for vehicals,agriculture ,michenery,industry,and for our homes
The lithosphere began as a hot ball of matter which formed the Earth about 4.6 billion years ago.About on our planet.The crust of the Eaarth is 6-7 km thck and lies under the contienents .Of the 92 elements in the lithosphere only eight are common constituents of crustal rocks .Of these constituents,47% is Oxygen,28% is silicon,8% is alluminum and 5% is iron ,while sodium ,magnesum,potasium and calcium constitute 4% each .To gether these elements form about 200 commo mineral compounds.Rocks ,when broken down,form soil on which man is dependent for agriculture.Thei minerals are also the raw meterial used in various industries.