Well, the magma in the volcano is boiling... and boiling... and boiling, until, it finally expands enough to erupt.
Answer:
Option (C)
Explanation:
Plates here refers to the lithospheric plates, which can be defined as the small or large broken fragments of the earth's crust. These plates constantly moves from one place to another due to the formation of convection current in the mantle. The plates comprises both the oceanic as well as continental crust, which shares three types of distinct plate boundaries such as the convergent, transform and divergent plate boundary.
Thus, the correct answer is option (C).
Answer:
B. Earth's outer core contains liquids that conduct electricity.
Explanation:
The dynamo theory explains how celestial bodies develop magnetic fields. According to the theory, the magnetic field is generated by the motion of a rotating and electrically conducting fluid