Answers

2015-10-18T11:43:15+05:30
We should conserve fuels because they present in limited amount on the Earth.They can be exhaustd by human activities.They takw many millions of years to form. It can be conserved by less use of these and use of renewable sources of energy
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2015-10-21T19:01:15+05:30
So that our future generati have access to them.
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