Which of the following statements about pesticides and herbicides is not true?
a. they can enter waterways, polluting them.
b. once the pesticides and herbicides break down, they are no longer harmful.
c. pesticides and herbicides are widely used in agriculture.
d. pesticides and herbicides can have negative effects on the environment.

How does the fossil record provide evidence that the modern whale evolved from the anthracotheres? a) the modern whale looks like their ancestor the anthracotheres. b) the modern whale has all of the same structures as their ancestor. c) there is not enough evidence to suggest the the modern whale evolved from the anthracotheres. d) the anthracotheres has a structure that is still present in the modern whale, but is no longer of use to the modern whale.