Knowing that the fastest growing source of electricity in the world currently is wind power, what is the main environmental advantage and environmental concern to be considered by any community considering wind power's future for their area?
What will be an ideal response?
The major environmental advantage for wind power is that it requires no fuel to generate electricity. Therefore, there is no need for mining, drilling, no radioactive wastes, no need for water in cooling towers, or any water pollution effects. Because there is no fuel to burn, there is no release of air pollutants or greenhouse gases produced with wind turbine generation of electricity. On the negative side, some biologists acknowledge that there is a risk of bird and bat mortality associated with wind farms, but note that this impact is very small compared to the millions of birds that are killed annually by domestic house cats or by flying into cell phone towers.
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Oxygen atoms are used to make water molecules. Does this mean that oxygen, O2, and water, H2O, have similar properties?
A. Yes, but that their properties are similar is only a coincidence. B. No, but their similar properties are only a coincidence. C. Yes, and this explains how fish are able to breathe water. D. No, compounds are uniquely different from the elements from which they're made.
The Japan Marine Science and Technology Center (JAMSTAC) is acclaimed for launching both the
deepest-diving manned and unmanned submersibles to date. Indicate whether the statement is true or false.
Carbon monoxide forms in forest fires
Indicate whether the statement is true or false
Which of the following statements with respect to Earth's climate is NOT true?
A. variation in energy output from the Sun is too small to explain current warming. B. the greenhouse effect is a natural phenomenon. C. Earth is currently in a strong warming trend. D. atmospheric carbon dioxide levels are currently well within Earth's recent operating range. E. past climate changes have caused societies to collapse.