All of the following are advantages of using ethanol as a fuel, except
What will be an ideal response?
lower NO emissions
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Enhanced oil recovery methods include all of the following except
A. heating the oil to decrease its viscosity. B. use of gas under pressure to force out more oil. C. deliberate fracturing to increase reservoir porosity. D. underground mining of oil-bearing rock.
Why do felsic rocks typically have the lightest color?
A) They contain olivine and pyroxene. B) They contain pyroxene, amphibole, and plagioclase feldspar. C) They contain quartz, mica, amphibole, sodium-rich plagioclase feldspar, and potassium feldspar. D) They contain olivine, pyroxene, and calcium-rich plagioclase feldspar.
When an area surrounding a national park is heavily logged, the park is in danger of becoming a
A. fragmentation zone. B. habitat island. C. barrier island. D. urban landscape. E. temperate region.
The ratio of the speed of light in a vacuum to the speed of light in a substance is defined as that substance's ____________________ ____________________ ____________________
Fill in the blank(s) with correct word