MacKenzie is an elementary student who has demonstrated the understanding that even though the levels of liquid in two glasses may appear different, they can still have the same amount depending on the size of the glass. She can also line up items from smallest to biggest. Which stage of Piaget's cognitive development is MacKenzie most likely in

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 areas with the highest population density in europe are most likely to be

When paul realizes no one is coming to the rwandan refugees, he tells them there is only one way for them to get . what is it?