Plate Tectonics and Geological Features

The video explores the ocean floor, focusing on the Mid-Atlantic Ridge and the concept of seafloor spreading. It explains how magma forms new crust, pushing plates apart at divergent boundaries, like in Iceland. The video also covers convergent boundaries, where oceanic plates subduct under continental plates, forming trenches, mountains, and causing earthquakes and tsunamis. The Pacific Ring of Fire is highlighted as a key area of volcanic activity. The video concludes with a review of these geological processes.

What is the primary composition of the seafloor beneath the sand?

• Metal

• Coral

• Rocks

• Clay

What significant geological feature divides the Atlantic Ocean?

• The Great Barrier Reef

• The Mariana Trench

• The Mid-Atlantic Ridge

• The Pacific Ring of Fire

What process describes the formation of new oceanic crust at mid-ocean ridges?

• Subduction

• Continental Drift

• Erosion

• Seafloor Spreading

What type of plate boundary is found at the Mid-Atlantic Ridge?

• Static

• Convergent

• Transform

• Divergent

Which island is part of the Mid-Atlantic Ridge and formed by seafloor spreading?

• Greenland

• Iceland

• Hawaii

• Madagascar

What is the Pacific Ring of Fire primarily composed of?

• Sand Dunes

• Icebergs

• Plate Boundaries

• Coral Reefs

What type of plate boundary is responsible for creating mountains?

• Convergent

• Static

• Divergent

• Transform

What happens to the denser oceanic plate during subduction?

• It sinks below the continental plate

• It rises above the continental plate

• It remains stationary

• It breaks apart

What natural disaster can result from the sudden movement of tectonic plates underwater?

• Drought

• Tsunami

• Tornado

• Hurricane

What is the continuous cycle involving seafloor spreading and subduction responsible for?

• Creating deserts

• Forming glaciers

• Building cities

• Recycling oceanic plates