GEOLOGY

Detailed explanation-1: -At a constructive plate margin the plates move apart from one another. When this happens the magma from the mantle rises up to make (or construct) new land in the form of a shield volcano. The movement of the plates over the mantle can cause earthquakes.

Detailed explanation-2: -Earthquakes can occur at constructive, destructive and conservative plate margins. An earthquake is the shaking and vibration of the Earth’s crust due to movement of the Earth’s plates. Earthquakes are found at constructive, desctructive and conservative plate boundaries.

Detailed explanation-3: -At conservative plate margins, tectonic plates slide past each other. There is no volcanic activity associated with conservative plates, though earthquakes can often occur. This is because plates do not pass each other smoothly; friction causes resistance.

Detailed explanation-4: -Plates collide at destructive plate margins causing subduction, earthquakes, volcanic eruptions and fold mountains. Plates slide by each other at conservative margins, causing earthquakes.

Detailed explanation-5: -Over time, the build up of friction will become so great that the plates reach a breaking point in which the pressure is released in the form of an earthquake. The zone in which earthquakes occur within destructive plate margins is called the Benioff zone.