DDT and 2, 4-D were introduced
A. Towards end of World War II
B. Towards beginning of World War II
C. During World War I
D. Just after thc World War I
Answer:A
DDT and 2, 4-D were introduced
A. Towards end of World War II B. Towards beginning of World War II C. During World War I D. Just after thc World War I