a) pillow lava
Pillow lava only forms underwater, and occurs when lava is squeezed out of a crevice and solidifies incredibly quickly.
Fold mountains form when two continental crust plates collide
Longitude is the measurement east or west of the prime meridian. Longitude is measured by imaginary lines that run around the Earth vertically (up and down) and meet at the North and South Poles. ... Each meridian measures one arcdegree of longitude. The distance around the Earth measures 360 degrees.
Earth rotates in and out of a tidal bulge twice a day.
