What do workers in countries with cheap labor use to recover valuable metals from e-waste?

A. Lead
B. Sharp knives
C. Heat
D. Acid
E. Mercury


Answer: D

Environmental & Atmospheric Sciences

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The smart card water manager system that is used in ___________has typically reduced water and electricity use, and has reduced household water bills by about _______%

a. Singapore, 10% b. Beijing, 40% c. Singapore, 40% d. Brazil, 10% e. Brazil, 40%

Environmental & Atmospheric Sciences

What was the first colonial powerto build an African empire?

a. the United States b. Great Britain c. France d. Spain e. Portugal

Environmental & Atmospheric Sciences

What is hypoxia?

a. The increase of carbon dioxide in an area b. The depletion of oxygen in an area c. The decrease in nutrients in an area d. The increase of nitrogen in an area

Environmental & Atmospheric Sciences

Bioremediation is a restoration strategy that

A. determines that a contaminated site is healthy because one species can thrive on it B. brings in different species to see which ones will thrive best in a polluted area C. uses living organisms such as plants and bacteria to eliminate toxins from the ecosystem D. is a labor-intensive process where contaminated soil must be removed and replaced before plants and animals can grow

Environmental & Atmospheric Sciences