The cost-to-profit graph for two mines using different types of copper extraction, smelting and bioleaching, is shown. Both mines are estimated to contain one million tons of copper. 900,000 800,000 700,000 600,000 500,000 400,000 300,000 200,000 100,000 0 Cost Cost to Profit Profit Key Smelting Bioleaching Based on the graph, which method of obtaining copper is likely the most cost-effective? A Using smelting has lower cleanup costs than bioleaching. Using smelting is cheaper and generates more profit than bioleaching. © Bioleaching harvests the copper in a shorter time period than smelting. ℗ Bioleaching is more expensive at first but the returns are much higher than smelting. O A O B ○ D hp

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The cost-to-profit graph for two mines using different types of copper extraction, smelting
and bioleaching, is shown. Both mines are estimated to contain one million tons of copper.
900,000
800,000
700,000
600,000
500,000
400,000
300,000
200,000
100,000
0
Cost
Cost to Profit
Profit
Key
Smelting
Bioleaching
Based on the graph, which method of obtaining copper is likely the most cost-effective?
A Using smelting has lower cleanup costs than bioleaching.
Using smelting is cheaper and generates more profit than bioleaching.
© Bioleaching harvests the copper in a shorter time period than smelting.
℗ Bioleaching is more expensive at first but the returns are much higher than smelting.
O A
O B
○ D
hp
Transcribed Image Text:The cost-to-profit graph for two mines using different types of copper extraction, smelting and bioleaching, is shown. Both mines are estimated to contain one million tons of copper. 900,000 800,000 700,000 600,000 500,000 400,000 300,000 200,000 100,000 0 Cost Cost to Profit Profit Key Smelting Bioleaching Based on the graph, which method of obtaining copper is likely the most cost-effective? A Using smelting has lower cleanup costs than bioleaching. Using smelting is cheaper and generates more profit than bioleaching. © Bioleaching harvests the copper in a shorter time period than smelting. ℗ Bioleaching is more expensive at first but the returns are much higher than smelting. O A O B ○ D hp
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