In Spite of Hundreds of Millions of Dollars Spent on Insecticides

Multiple Choice

In spite of hundreds of millions of dollars spent on insecticides targeted at pest control for agricultural and medical purposes, man has been unable to drive any to extinction. On the other hand, the extinction of many species of birds, fishes, plants, and insects species have occurred as a result of

A) hunting.
B) farming.
C) disease.
D) habitat destruction.
E) scientific collecting.