If you are talking about the first air pollution problem its is A, almost about 100 years ago.
1955
Answer:
General William Howe wanted to fight the main American army, under General George Washington. He thought that if he could defeat the main American army, this would reduce American morale and help Britain win the war.
Explanation:
The Reasons for the migration of the Bantu are not known but they most likely included the following, they moved due to the fear of famine, which broke out due to overcrowding and drought. The climate in their cradle land had become unreliable/unpredictable.
