Problem
1. What rate of growth of consumption will allow the current reserves of a natural resource to last for the next 50 years if this year's consumption is forecast to be 8 million tonnes and total reserves are 1,220 million tonnes?
2. World annual usage of mineral M is actually declining by 5% a year. The current rate of extraction is 65 million tonnes per year. Total reserves in existence amount to 1,500 million tonnes. Will they last forever if the 5% per annum decline persists?
The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.