GEOLOGY

Detailed explanation-1: -Seafloor spreading and other tectonic activity processes are the result of mantle convection. Mantle convection is the slow, churning motion of Earth’s mantle.

Detailed explanation-2: -Seafloor spreading is caused by divergent plates, which are a specific type of tectonic activity that results in plates that move away from each other. Divergent plates that are located underwater at mid-ocean ridges and volcanic activity present at these locations result in newly formed seafloor.

Detailed explanation-3: -Divergent boundaries are spreading boundaries, where new oceanic crust is created to fill in the space as the plates move apart. Most divergent boundaries are located along mid-ocean oceanic ridges (although some are on land).

Detailed explanation-4: -Mid-ocean ridges occur along divergent plate boundaries, where new ocean floor is created as the Earth’s tectonic plates spread apart.

Detailed explanation-5: -The middle of the Red Sea and the mid-ocean ridge (running the length of the Atlantic Ocean) are divergent plate boundaries. Also called passive margin spreading zone See more at tectonic boundary.