Suppose the World Demand for Iron Is About 420,000,000 Tons

question 48

Multiple Choice

Suppose the world demand for iron is about 420,000,000 tons per year. The known global reserves are 100,000,000,000 tons. The demand for iron is increasing at a rate of 1.8%. What is the exponential reserve for iron?

• A) 93.3
• B) 128.4
• C) 238.1
• D) 420.0

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