Answer:
the improvement in knowledge about medicine
Explanation:
The answer is: Cities
Approximately, around 80% of united states population live in the cities. This happen because most of job opportunities that exist in united states (whether it's art, technology, or manufacturing) are located in the cities.
Because of this, even people who born in rural areas start to move to inner cities in order to find jobs and sustain their living.
Answer: It is a set of actions taken by interest groups on issues that relate to the economy.
Explanation: An economic policy is when there is a course of action intended to control or influence the economy's behavior. (Like being told as a kid to not run down the hallway or else you'll get hurt.)
Answer:
Because the metal was too brittle, it cracked during a test strike.
Explanation:
The world's population grew yes, but not enough to multiply. Now, this is an answer, so i do have to have an answer... the answer is x1.34 roughly. it almost doubled, It didn't though.