Coal is used in thermal power plants to generate electricity. When coal is burned, it releases heat energy that is used to conve
rt water into steam. This steam is passed through turbines in order to generate electricity. Burning coal releases large quantities of carbon dioxide into the atmosphere. More and more coal is being mined in order to keep up with global demand for energy.
How does burning coal impact the earth?
A.
Burning coal contributes to colder global temperatures.
B.
Burning coal contributes to a decrease in soil fertility.
C.
Burning coal contributes to warmer global temperatures.
D.
Burning coal contributes to an increase in soil fertility.
<span>His opportunity cost is to give up the next best thing, in this case the digital camera. It is called a trade-off between cell phone and digital camera. But I could not imagine that it is a big one, compared to efficiency and equality.</span>
