Earth's Changes

Who proposed their hypothesis of the continental drift in 1912?

• Albert Einstein
• Alfred Wegener
• Dmitri Mendeleev
• Neil Armstrong

Which theory states that the continents were once joined together and over time broke up and drifted apart?

• Continental Drift Theory
• Theory of Plate Tectonics
• The Big Bang Theory
• Theory of Evolution

A giant "super continent" that existed 300 million years ago was called:

• Asia
• Pacific
• Pangaea
• Antarctica

Which theory states that the Earth's lithosphere is broken into plates that move by convection currents in the mantle?

• Continental Drift Theory
• Theory of Plate Tectonics
• Big Bang Theory
• Theory of Evolution

What is the soft layer on which the tectonic plates move?

• lithosphere
• lower mantle
• asthensophere
• mesosphere

The lithosphere is the coolest layer of the Earth made up of the:

• crust and upper mantle
• continental crust
• oceanic crust
• oceans

Which of the following correctly describes how the two tectonic plates are moving?

• One plate is sinking under the other.
• They are moving toward each other.
• They are moving away from each other.
• Subduction is occurring.

Earth's lithosphere is separated into several major tectonic plates. Which list contains only the names of major tectonic plates?

• Pacific, Atlantic, Indian, Arctic, Southern
• lithosphere, asthenosphere, mesoshpere, mantle, crust
• North American, South American, Indo-Australian, Pacific, Eurasian
• Antarctic, Atlantic, India, China

The process inside the mantle of cooler magma sinking towards the core and hotter magma rising towards the crust continually in a circular pattern is called:

• subduction
• earthquakes
• seismic waves
• convection currents

At which type of boundary do plates move past each other horizontally?

• divergent boundary
• convergent boundary
• transform boundary