Coal reserves in the U.S. have been estimated to be sufficient to last several centuries at current levels
of use. Why should we not feel good about this? What will be an ideal response?
"At current levels of use" does not accurately reflect the future. As oil reserves diminish, the demand
for coal will increase. Also, population increases are likely to increase the demand for all fossil fuels.
Based on historic trends, the level of use of coal will increase, thus shortening the time that our
reserves will last.
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When an oceanic plate collides with a continental plate, the continental plate slides up and over the denser oceanic plate, pushing it down into the mantle. This process is called ____.
A. production B. subduction C. induction D. convection E. trenching
What is the minimum number of oxygen atoms present in an acetal?
A) 0 B) 1 C) 2 D) 3
The International Panel on Climate Change is made up of over 2,500 atmospheric scientists from over 130 countries around the world
Indicate whether the statement is true or false
Primary pollutants are those that are
A. The most threatening to people B. The most dangerous C. Released directly in dangerous forms D. Classified by the EPA as the most dangerous and abundant E. Produced in the greatest quantities