Answer:Ivan Allen Jr. served as mayor of Atlanta from 1962 to 1970. He is credited with leading the city through an era of significant physical and economic growth and with maintaining calm during the civil rights movement. In 1965 he persuaded the Braves to move to Atlanta from Milwaukee, Wisconsin
Explanation:
Opportunity cost refers to a value that a person could have have received but which the person gave up in preference for another value. It is also called alternative cost. In the scenario given above, Harry decided that the most important commitments for him are to go over to his parent's house and to attending his friend's birthday party. But eventually, he gave up going to his friend's birthday party and go to his parent's house instead. So the opportunity cost in this scenario is the friend'd birthday party which Harry gave up.
Make more and more money to invest in making more money.
Green building doesn't involve only buildings which are made out of completely organic materials but it also involves building things which are meant to last and with a strong emphasis on the green surroundings where you live and how you can incorporate these buildings into the environment.