Question

Harmful environmental agents cause an average of 4-5 percent of birth defects.

Answer 1

True

Step-by-step explanation:

Answer 2

I think that the statement given above is true, Harmful environmental agents cause an average of 4-5 percent of birth defects. About 10 percent of birth defects are caused by environmental factors such as infection, radiation, and drugs. Hope this answers the question. Have a nice day.