Which of the following causes Minamata disease, a degenerative neurological disorder that causes blindness, brain damage, birth defects, paralysis, and death?
A) DDT
B) Methyl mercury
C) PCBs
D) Polycyclic aromatic hydrocarbons
E) Sewage sludge
Question 2
More than ________ non-native species have been introduced in the United States.
A) 7,000
B) 17,000
C) 37,000
D) 57,000
E) 77,000