I WASTED ALL MY POINTS FOR THIS QUESTION Why so most people in the four countries we studied live in urban areas?

Your

Urban areas always have a warm tropical climate.

There are more jobs in the factories and businesses of the cities.

Urban areas have more arable land in these countries.

Which sentences describes a cycle of dependency? a. aid harms the local economy creating the need for more aid.b. aid improves infrastructure and creates more wealth and more good infrastructure.c. aid programs become more reliable over time so people can depend on them.d. no answer is correct

Which powers best complete this graphic?

Which of the following  bestillustrates a negative reinforcer?               a.  copland gives up candy to stave off chronic acid indigestion.    b.  nancy learns that she prefers chocolate over vanilla.    c.  carmine changes his major to english lit after failing a math exam.    d.  on a hot day, lindberg always drinks lemonade.