SCIENCE!)-1st

The idea proposed by Alfred Wegener to explain the continental shapes and positions is known as _____.

• Pangaea

• Continental Drift

• Plate Tectonics

• Seaflorr Spreading

The Seafloor Spreading Theory states that ________________.

• all continents are drifting.

• ages of rocks near a ridge are older than the ones far from it.

• fossils of plants and animals are found in almost all continents.

• hot and less dense material from below the Earth's crust rises towards the surface at the mid-oceanic ridge.

Early observers thought continents might have been joined based on what observation?

• rocks and fossils

• magnetism

• earthquakes

• coastline

Early observers thought continents might have been joined based on what observation?

• satellites

• stars

• magnetism

• sonars

He is a German Scientist who hypothesized in 1912 that continents were once a giant landmass called Pangaea.

• Robert Dietz

• Harry Hammond Hess

• Alfred Lothar Wegener

• Charles Darwin

What strong evidence discovered by our scientist that Earth's magnetic reversal had been happening in the past?

• The magnetic reversal occurrence is supported by magnetic patterns in magnetic rocks found on the ocean floor.

• The ages of the rocks on the ocean floor are constantly changing.

• The magnetic field of the Earth becomes weaker.

• The Earth's magnetic field is fluctuating.

He was credited for the idea of Continental Drift Theory

• Alfred Lothar Wegener

• Harry Hammond Hess

• Charles Darwin

• Robert Dietz

All continents were once joined together forming a supercontinent called__________.

• Panthalassa

• Laurasia

• Gandwana

• Pangaea

It is possibly the most important fossil plant evidence that continents are drifting.

• Lystrosaurus

• Glossopteris

• Mesosaurus

• Cynognathus

What are the evidence gathered by Alfred Wegener to support his Continental Drift Theory?

• continental fit, rocks, fossils, coal deposits, ancient climate, and glaciers scars

• the ancient climate of Antarctica and Africa

• remains of dead plants and animals

• observing the map