All of the known planets in our solar system are nearly spherical.
For much of the last quarter century, the leading theory of the driving force behind tectonic plate motions envisaged large scale convection currents in the upper mantle, which can be transmitted through the asthenosphere.
Answer:
A. South Africa
Explanation:
from 1948 and into the early 1990s
Answer:
C. Density differences
Explanation:
Lithospheric plates are equivalent to tectonic plates. They are located in the Earth's uppermost layer
