Give an example of a push factor for people to leave a rainforest

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?

How did the aztec culture benefit spain when they were conquering the aztecs?

Restricting immigrants from entering a country may be based on what belief?