The acid in acid drainage comes from
a. acids stored in ore deposits.
b. chemicals used in removing the overburden.
c. the clay cap placed on piles of mine tailings.
d. reaction of sulfide minerals in exposed rock to oxygen and rainwater.
Answer: D
You might also like to view...
Empowerment refers to
A) the ability of women to achieve economic and political power. B) a constitutional guarantee that women have the right to choose. C) a woman being given permission to serve in the military. D) a constitutional guarantee of equal pay for equal work. E) disenfranchised women.
Which Christian religion originated in Constantinople (now Istanbul) and spread to Greece?
a. Eastern Orthodox b. Calvinism c. Lutheran Protestantism d. Catholicism e. Islam
Ocean floor averages about ________ km depth below sea level
A) 8 B) 2 C) 4 D) 6
A species' realized niche ________
A) cannot be smaller than its fundamental niche B) is never really realized because it isn't real C) cannot be larger than its fundamental niche D) is the portion of a species' niche that is "taken over" by competing species E) is the niche that a species realizes/experiences in the absence of competition