Producing steel from recycled scrap iron uses _______________% less energy than producing steel from virgin iron ore
Fill in the blanks with correct word
75
Environmental & Atmospheric Sciences
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Which area(s) on this world map is (are) likely to have volcanoes above sea level?
A. A B. B C. C D. D
Environmental & Atmospheric Sciences
Poverty is usually defined as
A. not being able to live sustainably B. not being able to meet one's basic economic needs. C. earning less than $100 per year. D. meeting one's dietary needs on a day-to-day basis E. not owning one's own home.
Environmental & Atmospheric Sciences
Impact of urbanization on soil erosion is primarily a problem during the construction phase
Indicate whether the statement is true or false
Environmental & Atmospheric Sciences
Prior to the Industrial Revolution, the concentration of carbon dioxide in the atmosphere oscillated between 180 and ____ ppm.
A. 200 B. 280 C. 350 D. 390 E. 420
Environmental & Atmospheric Sciences