Researchers have been unable to pinpoint one cause of attention-deficit/hyperactivity disorder in children. There are several factors that can contribute to the existence of the disorder. Not only might each of these factors have a direct impact on the disorder, but they may interact with and affect one another in countless different ways. This is a good example of the of people that

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

The map shows latitudes and longitudes of france. which city is located at approximately 48°n, 7°e?

He constitution dictates that the presiding officer of the senate is the a) majority whip. b) vice-president. c) majority leader. d) speaker of the house.