Extraction of petroleum from oil sands causes environmental degradation at the extraction site and its surroundings. How does the use of the resulting petroleum products impact the environment

King fisher aviation is evaluating an investment project with the following case flows: $6,000 $5,500 $7,000 $8,000 discount rate 14 percent what is the discounted payback period for these cash flows if the initial cost is 15,000? what if the initial cost is $12,000? what if the cost is $16,000?

The strength of the economy depends on the balance pf production and consumption of goods and consumption of goods and services

Which statement below best describes george waring's approach to solving the problems of water-borne illness? a. waring is going with his "gut," because he believes that instincts and emotions are the best guides for action. b. waring efficiently and thoroughly lays out the case for why the problems are too large and overwhelming to be solved: people should just move out of cities back to their farms. c. waring has gathered the testimonies of people who live in densely populated areas in order to learn how they themselves have solved their problems. d. waring exhibits the industrial age's increased respect for and reliance on science and the scientific method.