Understanding Divergent Boundaries

The video tutorial explains divergent boundaries, one of the three main types of plate boundaries in plate tectonics. Divergent boundaries, also known as constructive boundaries, are characterized by the creation of new crust as tectonic plates move apart. These boundaries are mostly found in oceans and are marked by features such as shallow seismic activity and raised ridges due to new crust formation. The Mid-Atlantic Ridge is highlighted as a prominent example, showcasing the effects of divergent boundaries, particularly in Iceland, where the island is being split by tectonic activity.

Which of the following is NOT one of the three main types of plate boundaries?

• Divergent

• Convergent

• Subductive

• Transform

What is a key characteristic of divergent boundaries?

• They are found only on land.

• They have deep earthquakes.

• They create new crust.

• They destroy existing crust.

What is the primary reason divergent boundaries are called constructive?

• They create new crust.

• They destroy old crust.

• They form mountains.

• They cause earthquakes.

Which feature is commonly associated with divergent boundaries?

• High volcanic activity

• Deep seismic activity

• New crust formation

• Mountain building

What is bathymetry?

• The study of seismic waves

• The study of land height

• The study of volcanic activity

• The study of ocean depths

Which of the following is NOT a feature of divergent boundaries?

• New crust formation

• Raised ridges

• Deep earthquakes

• Shallow seismic activity

Which ocean feature is commonly found at divergent boundaries?

• Subduction zones

• Volcanic islands

• Raised ridges

• Deep trenches

What is a distinguishing feature of the Mid-Atlantic Ridge?

• It is the shortest mountain range on Earth.

• It has no volcanic activity.

• It is the longest mountain range on Earth.

• It is located entirely on land.

How does the Mid-Atlantic Ridge affect Iceland?

• It causes the island to sink.

• It prevents volcanic activity on the island.

• It splits the island in half.

• It creates high mountains on the island.

What is the average spreading rate of the Mid-Atlantic Ridge?

• 3.5 centimeters per year

• 2.5 centimeters per year

• 4.5 centimeters per year

• 1.5 centimeters per year