Natural Resourses Depletion
Natural resources are the ones that maintain equilibrium in the environment and life. Natural resources like air, water, solar energy, soil, minerals, coal, etc., are those basic elements that we, living beings, use to lead a normal life. Depletion of natural resources will completely stun the day to day life of a human being as well as fellow living things.
More resources are hence being used to satisfy the industrial demands, increasing the rate of natural resource depletion.
Depletion accounting factors in several different influences such as the number of years until resource exhaustion, the cost of resource extraction and the demand of the resource.
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Materials Flow and Sustainability, US Geological Survey.Fact Sheet FS-068-98, June 1998.