I think you forgot to give the options along with the question. I am answering the question based on my research and knowledge. The primary concern of developmental psychologists is the <span>changes that occur throughout a person's life span. I hope that this is the answer that has actually come to your help.</span>
In ancient times, Sparta took up far more territory on land, which gave them a slight military advantage, but Athens had far more naval power, but evened the playing field slightly.
The answer is A. primary pollutant
