Cities tend to require very inputs of energy and materials resulting in outputs of waste.
a. large; small
b. large; large
c. small; large
d. similar; similar
e. small; small

An externality can be created by a. people working at a production job and enjoying their work b. a production activity but not a consumption activity c. a consumption activity but not a production activity d. a production activity or a consumption activity externalities a. are always positive, and an example is flu vaccinations b. are always negative, and an example is the pollution created by trucks c. can be negative or positive. logging has a negative externality, and education has a positive externality d. can be negative or positive. a negative externality is having to go to school when you would rather go to the beach, and a positive externality is spending time with your friends

Which type of learning occurs when you observe how other people act?

What made it increasingly difficult for president roosevelt to stay neutral during world war ii?