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Environmental Science 15th Edition by Scott Spoolman,Tyler Miller
النسخة 15الرقم المعياري الدولي: 978-1305090446Environmental Science 15th Edition by Scott Spoolman,Tyler Miller
النسخة 15الرقم المعياري الدولي: 978-1305090446 تمرين 18
Rare earth metals are widely used in a variety of important products ( Core Case Study ). According to the U.S. Geological Survey, China has about 50% of the world's reserves of rare earth metals. Use this information to answer the following questions.
The annual global demand for rare earth metals is projected to rise to at least 185,000 metric tons by 2015. At this rate, if China were to produce all of the world's rare earth metals, how long would its reserves last?
The annual global demand for rare earth metals is projected to rise to at least 185,000 metric tons by 2015. At this rate, if China were to produce all of the world's rare earth metals, how long would its reserves last?
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China harbours half of the world's total...
Environmental Science 15th Edition by Scott Spoolman,Tyler Miller
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