Which is the best example of direct vendor advertising?

What specific science discipline do most social engineering attacks rely on when they are being used?

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?

The principle that the geoglical processes that we see today have occurred through out earths history is called