How is biotechnology helping to reduce the environmental impacts of mining?
A) through efficient treatment of mine wastes and contaminated water
B) plant uptake of precious metals permits mining of plants rather than rock
C) through the use of plants that revegetate mine waste piles
D) through better environmental regulations relating to mine waste
A
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A community organization forms to protect the Yuba River Watershed. What is the Yuba River Watershed?
A. the banks of the Yuba River B. a dam over the Yuba River C. a shed on the banks of the Yuba River where people come to fish and hang out D. the area of land that features streams that flow into the Yuba River
Langmuir circulation disturbs deep water currents due to twisting vortices. Indicate whether the statement is true or false
Iraq contains approximately 26 percent of the world's known oil reserves
Indicate whether the statement is true or false
Which of the following did not lead to the massive end-Cretaceous mass extinction?
A. Chicxulub Impact B. massive mountain building events C. long-lasting sea level fall D. Deccan Traps flood basalts