If you are talking about the first air pollution problem its is A, almost about 100 years ago.
1955
It started in the 1870's and it ended in the 1950's
Hoped This Helped
Actually this is False. Some north colonies had slaves in them.
Explanation:
Aristotle
Therefore, Aristotle is called the Father of biology. He was a great Greek philosopher and polymath. His theory of biology also known as the “Aristotle's biology” describes five major biological processes, namely, metabolism, temperature regulation, inheritance, information processing and embryogenesis.
The answer is Tye very last choice
