People who agree to hold office accept two important responsibilities. they are:

Mr. mann's science students were experimenting with speed. they set up a 1 meter (100 cm) track. the students used balls instead of cars. the balls were different sizes and made of different materials. four at a time, students rolled balls around the track to see which had the fastest and slowest speeds. some of their data are shown in the table. which ball will take the longest to complete one lap around the track?

Which groups of people most directly benefited from song innovations in the song dynasty‘s open border policy?

Our environments can change human behavior. describe some ways that environment changes the choices we make. what does the connection between humans and environment have to do with the study of geography?