15. Which of the following statement is true about Plate Tectonic?
A. The plates are in constant motion. As they interact along their margins, important geological processes take place, such
as the formation of mountain belts, earthquakes, and volcanoes.
B. Plates are large pieces of the upper few hundred kilometers of Earth that move as a single unit as it floats above the
mantle.
C. A and B
d. A only​