Which type of mineral is responsible for acid mine drainage?
A. Silicates
B. Phosphates
C. Carbonates
D. Sulfides
Answer: D
Environmental & Atmospheric Sciences
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________ model is used by geographers to explain the importance of proximity to the market in the choice of crops to the commercial farm
A) von Thünen's B) Whittlesey's C) Iqbel's D) McKinley's E) von Helsing's
Environmental & Atmospheric Sciences
What is the term for the process in which chemicals are brought into the body through open cuts or abrasions?
a. Absorption b. Perfusion c. Insertion d. Injection
Environmental & Atmospheric Sciences
What causes a lack of cleavage in some minerals?
Environmental & Atmospheric Sciences
Summarize the active, moving nature of the earth's crust, especially with regard to tectonic plates.
What will be an ideal response?
Environmental & Atmospheric Sciences