Exploring Divergent Plate Boundaries

The video explains divergent plate boundaries, where tectonic plates move apart due to rising convection currents. This movement creates new crust as magma fills the gap. There are two main types: oceanic, where seafloor spreading occurs, exemplified by the mid-ocean ridge, and continental, which forms rift valleys like the East African Rift. The Red Sea is an example of a transition from continental to oceanic divergence. The video concludes with a call to subscribe for more educational content.

What occurs at divergent plate boundaries?

• Plates move away from each other

• Plates collide and form mountains

• Plates remain stationary

• Plates move sideways past each other

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What is primarily responsible for the movement of tectonic plates at divergent boundaries?

• Magnetic field variations

• Solar radiation

• Gravitational forces

• Rising convection currents

What happens to the lithosphere at divergent boundaries?

• It thickens

• It remains unchanged

• It becomes fragmented

• It expands as new material is added

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Why are divergent boundaries considered constructive?

• They do not change the crust

• They destroy old crust

• They create new crust

• They cause earthquakes

How does new lithosphere form at divergent boundaries?

• By meteor impacts

• From rising magma

• By volcanic eruptions

• Through sediment deposition

What is the primary difference between oceanic and continental divergent boundaries?

• Presence of water

• Type of crust involved

• Temperature of the magma

• Depth of the boundary

What forms at oceanic and oceanic divergent boundaries?

• Mid-ocean ridges

• Deep ocean trenches

• Volcanic islands

• Mountain ranges

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Where does seafloor spreading primarily occur?

• Along continental divides

• At convergent boundaries

• At mid-ocean ridges

• At transform boundaries

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Which region is an example of a continental and continental divergent boundary?

• The Andes Mountains

• The Alps

• The East African Rift Valley

• The Himalayas

What geological feature was formed by the divergence of the African and Arabian plates?

• The Great Barrier Reef

• Lake Baikal

• The Grand Canyon

• The Red Sea

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