In the sequence above, number is an example of indirect learning, while number is an example of direct learning.

The impact of a large asteroid comet with earth has been proposed to have caused the extinction of the dinosaurs. the impact site of this comet is in or near

What is one difference between austria and switzerland? a. austria is landlocked. b. austria has more minerals resources c. austria has a strong tourism industry d. austria has a strong dairy cattle industry

Which layer surrounds the center of the earth? a: crust b: core c: mantle