Closed system - Is defined when a particular quantity of matter is under study. Consist of fixed amount of mass.

What does that mean? a matter cannot enter and exit a close system right? So does that mean in a close system there’s a little bit amount of matter in it?

Which statement describes john tuzo wilson’s contribution to the theory of plate tectonics? he proposed that plates carry parts of the seafloor. he theorized that pieces of earth move for a limited time. he suggested that the asthenosphere is broken into segments. he observed seafloor cracks similar to existing cracks in the continents.

Long ago, people who lived in coastal north africa most often interacted with

Apex math 2 sem 2 unit 2 pre-test in the figure below, which term best describes point v? a. orthocenter b. circumcenter c. incenter d. centroid