Plate Tectonics and Volcanoes

What type of plate boundary is characterized by plates moving away from each other?

• Convergent boundary

• Divergent boundary

• Transform boundary

• Subduction zone

Which of the following is a topographic feature commonly found at convergent plate boundaries?

• Mid-ocean ridge

• Ocean trench

• Rift valley

• Hotspot

Describe the process of volcano formation at a divergent boundary.

• Magma rises through cracks as plates pull apart, forming new crust.

• Plates collide, and one is forced beneath the other, melting into magma.

• Plates slide past each other, causing friction and heat.

• Magma rises through a stationary hotspot in the mantle.

What is the primary characteristic of the Ring of Fire?

• It is a region with frequent earthquakes and volcanic eruptions.

• It is a zone of calm seas and stable weather.

• It is an area with no tectonic activity.

• It is a region known for its large deserts.

Explain how the formation of mid-ocean ridges is related to plate tectonics.

• They form where two oceanic plates converge and one is subducted.

• They form where two oceanic plates diverge, allowing magma to rise.

• They form where two continental plates collide and create mountains.

• They form where a plate slides past another, creating a fault line.

Which of the following is a feature of a transform plate boundary?

• Volcanic island arc

• Earthquake activity

• Mountain range

• Ocean trench

How were the Hawaiian Islands formed?

• Subduction of an oceanic plate beneath a continental plate

• Rising of magma through a stationary point in the mantle creating a hot spot.

• Collision of two continental plates

• Divergence of two oceanic plates

How does the movement of tectonic plates affect the topography of the Earth's surface?

• It creates uniform flat plains across the globe.

• It leads to the formation of various landforms like mountains, valleys, and trenches.

• It causes the Earth's surface to remain unchanged over time.

• It results in the disappearance of all water bodies.

Which of the following best describes a rift valley?

• A deep underwater trench formed by subduction

• A lowland region formed by the divergence of tectonic plates

• A mountain range formed by the collision of two plates

• A volcanic island chain formed by hotspots

Explain the role of convection currents in the mantle in the movement of tectonic plates.

• They cause the plates to remain stationary.

• They drive the movement of plates by creating a flow of heat and material.

• They prevent the plates from moving by cooling the mantle.

• They cause the plates to move only vertically.