advantages: coal is plentiful and energy dense, technological demands for surface mining are small and costs are low; oil is convenient to transport/use, energy dense, burns cleaner than coal and is more CO2 efficient than coal; natural gas contains fewer impurities than coal and oil and releases 60% as much CO2 as coal does.
Which of the following conditions is most likely directly linked to tobacco use? A. influenza B. lung cancer C. pneumonia D. diabetes. Lung cancer is most likely directly linked to tobacco use.
Cigar smoking poses serious health risks, including: 1  Cancer. All tobacco smoke contains chemicals that can cause cancer, and cigar smoke is no exception. 2  Lung and heart disease. Regular cigar smoking increases the risk of lung diseases, including emphysema and chronic bronchitis. 3  Oral disease.