the word tectonic is refered to the tectonic plates in the earth. they cause all the earthquakes and they also create mountains in a way. and the earth is divided into 6 pieces
Is that a fact or question?
Everything in Earth's system can be placed into one of four majorsubsystems: land, water, living things, or air. These four subsystems are called “spheres.” Specifically, they are the lithosphere (land), hydrosphere (water), biosphere (living things), and atmosphere (air). Each of these four spheres can be further divided into sub-spheres.
Answer:
Pollution is their biggest problem