Plate Tectonics

15 Points Per Correct Answer - No time limit  

1. Which person was the first to publish and publicise his view that a single continent existed about 300 million years ago? Arthur Holmes Francis Bacon Alfred Wegener Alexander Du Toit

2. What was the name that the author of the plate tectonics theory gave to the super continent? Laurasia Nazca Gondwanaland Pangaea

3. Which of these statements isn't evidence for the theory of continental drift? Volcanoes on the edges of existing plate boundaries Rock sequences in Scotland matching sequences in Canada The bulge of South America fitting into the indent in Africa Similar fossil remains being found in South America and Southern Africa

4. Soon after the original theory, evidence of sea floor spreading was found. In which ocean was the evidence for sea floor spreading FIRST found? Arctic Pacific Atlantic Indian

5. Tectonic plates have been divided by scientists into two different types - oceanic and continental. Which of these materials can be found in both types of plate? Basalt Granite Silicon Aluminium

6. There are two types of plate margins - constructive and destructive. As continental plates with constructive plate margins move apart, which landform is formed? Rift valleys Calderas Buttes Oceanic Ridges

7. Destructive plate margins involve two plates moving towards each other. This can result in one of two outcomes. What is the name of the process in which the denser oceanic plate is forced under the lighter continental (or another oceanic) plate? Answer: (One Word, 10 letters, beginning with s)

8. As well as constructive and destructive plate margins, there are also less common types. One of these is a conservative plate margin, which can lead to earthquakes. What movement occurs with conservative plate margins? Oceanic plates moving towards each other Plates moving away from each other Two plates moving past each other No plate movement at all

9. Hot spots can also cause volcanic activity. These develop because of a concentration of radioactive elements inside the mantle. Where do hotspots occur in a tectonic plate? By the ocean The edges Anywhere In the middle

10. What is the name given to the notorious area around the Pacific plate associated with considerable tectonic activity? The Zone of Death The Ring of Fire The Circle of Volcanoes The Earthquake Ellipse