The Active Earth: Changes and Effects

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What is the main focus of Wegener's continental drift hypothesis?

The movement of tectonic plates

The effects of volcanic eruptions

The occurrence of earthquakes

The formation of Pangaea (correct)

How did Alexander DuToit contribute to the evidence supporting continental drift theory?

By studying the impact of meteorite impacts on the continents

By demonstrating how fossils are formed in various continents

By discovering the presence of active volcanoes on the continents

By explaining how the continental shelves could fit better than coastlines (correct)

Which type of evidence for continental drift theory involves the presence of similar organisms on different continents?

Fossil Correlation (correct)

Ocean Trench Exploration

Seismic Activity Comparison

Crustal Displacement Analysis

In the context of Wegener's research, what does 'Pangaea' refer to?

The ancient supercontinent that existed millions of years ago Signup and view all the answers

What key observation led Wegener to propose the continental drift hypothesis?

The similarity in coastlines between South America and Africa Signup and view all the answers

Which scientific discipline did Wegener belong to, and how did this influence his work on continental drift?

Geophysics - provided tools to study the Earth's magnetic field Signup and view all the answers

What type of rock structure similarities did scientists note when studying neighboring continents?

Similarities in mountain structures and rock types Signup and view all the answers

Which geological phenomenon explains the creation of major landforms due to Earth's subterranean movements?

Plate tectonics theory Signup and view all the answers

What type of boundary is formed when two tectonic plates move away from each other?

Divergent boundary Signup and view all the answers

Which geological event can cause the edges of colliding plates to buckle up into mountain ranges?

Earthquakes Signup and view all the answers

What type of boundary causes a fault between two plates of the lithosphere, leading to earthquakes but not volcanoes?

Transform boundary Signup and view all the answers

What is the main difference between conduction and convection in terms of heat transfer?

Conduction involves movement of particles, while convection only transfers energy upon contact. Signup and view all the answers

The Active Earth: Changes and Effects

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