i)Serves as a source of minerals .
ii)It is the major source of fuels such as coal and natural gas .
iii)It provides nutrients to the plant .

i)It provides an important place for theĀ  human beings and animal to live .
ii)There are nutrients like nitrate , nitrites and other ions dissolved in water which are needed for life to exist in water
iii)It also helps the earth to regulate its temperature .

i)It [ozone] protects the earth from the UV rays of the sun .
ii)It is the conserver , disperser and modifier of heat .
iii)It is the great vibrator of sound , the true sounding board of the world .
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