Alfred Wegener and Harry Hess Quiz

What was Alfred Wegener's real love?

• Meteorology

• Geology

• Astronomy

• Biology

In which year did Alfred Wegener publish 'The Origin of Continents and Oceans'?

• 1915

• 1910

• 1920

• 1925

What was the name of the theory proposed by Alfred Wegener?

• Seafloor Spreading

• Continental Drift

• Plate Tectonics

• Magnetic Polarity

What was the main reason geologists rejected Wegener's ideas?

• Insufficient research

• Inaccurate data

• Lack of academic background

• Lack of evidence

What did Harry Hess discover using sounding gear on the USS Cape Johnson?

• Canyons and trenches

• Volcanic islands

• Underwater caves

• Smooth ocean floor

What did Harry Hess's theory of 'seafloor spreading' explain?

• Formation of mountains

• Movement of continents

• Magnetic field reversals

• Oceanic ridges

When did the dating of ocean-core samples confirm the reality of seafloor spreading?

• 1930s

• 1940s

• 1950s

• 1960s

What term did geologists agree to use for the core paradigm of their discipline in the 1970s?

• Magnetic Polarity

• Continental Drift

• Seafloor Spreading

• Plate Tectonics

What is thought to be the force that moves the Earth's plates?

• Solar radiation

• Convection currents

• Tidal forces

• Magnetic fields

What happens when two plates carrying continents clash head on?

• Earthquakes

• Sideways movement

• Subduction

• Mountain formation