Answer:
Scientists believe that plate tectonics is an example of an internal force that changes the Earth’s crust.
Plate tectonics is a theory that describes the motion of seven large plates, and many other smaller plates of the Earth's lithosphere. When they collide they can make mountains or we can feel their motion as earthquakes. Their motion is responsible for the continental shift and it made our continents look the way they look today.
the answer is a
(context) There was an abundance of trees along riverbanks where sawmills were established.
(more context) I also took the test
Answer:
erosion affects not only economic development but climate changes, because the process of soil erosion releases carbonium ions into the air, while carbon dioxide is the primary cause of global warming
Explanation:
B. rock. i am not exactly sure but i think is rock.
