Tectonic Plates and Continental Drift

What occurs at convergent plate boundaries?

• Two tectonic plates move towards each other, leading to subduction or mountain formation.

• Tectonic plates slide past each other, causing earthquakes.

• Tectonic plates move away from each other, creating new crust.

• Tectonic plates remain stationary, resulting in no geological activity.

What evidence supports the Theory of Continental Drift?

• Same fossils found on different continents

• Presence of dinosaurs in Antarctica

• Identical mountain ranges in North America and Europe

• Discovery of ancient human artifacts in Australia

What is the main characteristic of transform boundaries?

• Plates move away from each other, creating new crust.

• Plates collide, causing one plate to be forced under another.

• Nothing is created or destroyed; plates slide past each other.

• Plates are stationary and do not interact with each other.

What happens when two oceanic plates collide?

• They create volcanic islands.

• They form mountain ranges.

• They cause earthquakes on land.

• They create deep ocean trenches.

What is an example of a transform boundary?

• San Andreas Fault in California.

• Mid-Atlantic Ridge

• Himalayan Mountain Range

• Great Rift Valley

Who proposed the Theory of Continental Drift?

• Alfred Wegener

• Harry Hess

• Arthur Holmes

• James Hutton

What happens at transform plate boundaries?

• Two plates slide alongside each other, causing friction and earthquakes.

• Two plates move apart, creating new crust.

• Two plates collide, forming mountains.

• Two plates sink into the mantle, causing volcanic activity.

What does the lithosphere consist of?

• The crust and the solid uppermost mantle.

• The outer core and the inner core.

• The atmosphere and the hydrosphere.

• The mantle and the liquid outer core.

Give examples of fold mountains.

• The Himalayas, the Alps, and the High Tatras.

• The Rockies and the Andes.

• The Appalachian Mountains and the Sierra Nevada.

• The Ural Mountains and the Great Dividing Range.

What is the role of magma in convergent boundaries?

• Magma is forced to rise when oceanic crust is subducted beneath continental crust.

• Magma cools and solidifies to form new oceanic crust.

• Magma remains stationary and does not affect tectonic plates.

• Magma is expelled from the Earth's surface during volcanic eruptions.