Thousands of cases of lung cancer occur in a two-year period in a city outside of Kentucky, at rates that are double that seen in other cities in the United States. Scientists working in that region assume that
A) there is something unique to the region that causing these unusually high rates.
B) the medical reports from the area are incorrect.
C) government policies and regulations are most likely the cause of this increase in cancer.
D) this is most likely just an unlucky occurrence.
A
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The quickest, cleanest, and cheapest way to provide more energy is to ____________________
Fill in the blanks with correct word
Which of the following statements is true of electromagnetic radiation?
A) All electromagnetic radiation has the same energy. B) As the frequency of the radiation increases, the energy of the radiation decreases. C) As the frequency of the radiation increases, the energy of the radiation increases. D) There is no specific relationship between frequency and energy.
A time zone is approximately ________ degrees wide.
A. 5 B. 365 C. 90 D. 180 E. 15
Antarctica is the coldest, driest, and windiest continent on Earth.
a. true b. false