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 fruit to drop prematurely from plants.
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.

Question

Quizplus · Accepted Answer

Dioxin is a carcinogenic chemical that has been linked with birth defects and leukemia in mammals. The use of 2,4-D, which can produce dioxin as a by-product, raises concerns about its potential health impacts on humans and wildlife. The other options (A, B, and D) are not directly related to the negative impacts of dioxin.

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