When rock from the mantle melts, moves to the surface through the crust, and releases pent-up gases, volcanoes erupt. Extremely high temperature and pressure cause the rock to melt and become liquid rock or magma. When a large body of magma has formed, it rises thorugh the denser rock layers toward Earth's surface
Answer:
may be 1 is the answer may be ..
Answer:
Potter's wheel
Explanation:
A potter's wheel is a horizontal revolving wheel on which wet clay is shaped into pots or other round objects.
The area of square a is 100
I believe your answer is C. incandescent bulb
