McqMate
| Q. |
The main cause of global climatic change is – |
| A. | increase in the content of carbon dioxide in the atmosphere |
| B. | emissions of industrial gases |
| C. | adding of dust |
| D. | changes in plant cover |
| Answer» A. increase in the content of carbon dioxide in the atmosphere | |
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Explanation: Our ever increasing addiction to electricity from coal burning power plants eleases enormous amounts of carbon dioxide into the atmosphere. 40% of U.S. CO2 emissions come from electricity production, and burning coal accounts for 93% of emissions from the electric utility industry. Every day, more electric gadgets flood the market, and without widespread alternative energy sources, we are highly dependent on burning coal for our personal and commercial electrical supply. |
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