Layers of the Earth and plate tectonics

Wegener proposed  the continental drift hypothesis suggesting that continents are in constant motion on the surface of the Earth. 

• True
• False

Glossopteris was a supercontinent consisting of Earth's present-day continents.

• true
• false

Wegener used fossil ferns to suggset that a supercontinent existed about 250 million years ago.

• true
• false

Glacial grooves in rocks in Africa suggest that tis continent was once located in a much colder place.

• true
• false

The puzzle-like fit of continental coastlines was one piece of evidence Wegener used to suggest that the continents were once joined.

• true
• fase

Rocks with a similar makeup and age in South America and Africa supported Wegener's idea of moving continents.

• true
• false

Wegener's hypothesis of moving continents was not accepted by many before he did not have much data to support it.

• true
• false

Magnets point north when Earth's magnetic field has this.

• mid-ocean ridge
• magnetic reversal
• normal polarity
• convection

Process that forms new oceanic crust and moves it.

• seafloor spreading
• convergent plate 
• divergent plate
• mid-ocean ridge

Takes place when Earth's magnetic field changes.

• normal polarity
• reversed polarity
• magnetic reversal
• convection