Biological warfare (mustard gas)
B) Cast would be the answer. Hope this helps!
In 1976, the United States of America celebrated it's Bicentennial. Good luck on your homework.
A volunteer helps others without pay.
Answer:
The answer is B and C
Region 1 - Appaalachian plateau
Region 2 - Valley and Ridge
Region 3 - blue Ridge
Region 4 - piedmont
Region 5 - coastal plain