There Is Concern Over the Use of 2,4-D, a Synthetic

Multiple Choice

There is concern over the use of 2,4-D, a synthetic plant hormone, as a weed killer because the by-product dioxin

A) can cause irreversible mutations in crop plants.
B) causes massive fish kills when it gets into lakes and streams.
C) can cause birth defects and leukemia in mammals.
D) weakens the shells of the eggs of predatory birds, resulting in the death of their offspring.