Week 3 Glg/150 Essay

688 Words Feb 26th, 2016 3 Pages
University of Phoenix Material

Effects of the Motions of Tectonic Plates Worksheet

From Visualizing Earth Science, by Merali, Z., and Skinner, B. J, 2009, Hoboken, NJ: Wiley. Copyright 2009 by Wiley. Adapted with permission.

Part 1

This diagram was similar to one Alfred Wegener drew to show the distribution of continents 300 million years ago. His theory of continental drift was met with skepticism in the scientific community.

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1. Describe three forms of evidence Wegener used to support his ideas of continental drift. Wegener used landorms, climate, and fossils to support his theory of continental drift. He said that when it came to landforms all the continents seemed to fit like a “jigsaw puzzle”. Even
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1. How does the motion of the tectonic plates affect the climate? Plate tectonics causes a change in the ocean currents which generates more heat. When the plates shift, they create volcanic eruptions which increases the amount of CO2 and SO2 in the atmosphere. This is what causes the temperature to rise around the world. 2. How does the motion of the tectonic plates affect the geography? They can cause ridges which are formed when plates spread apart from another. When continental or oceanic plates collide, they create mountains. They also cause rifts and valleys and hills. 3. How does the motion of the tectonic plates affect the distribution of organisms? When landmasses separate due to the motion of tectonic plates it carries and distributes plants and animals around or when the plates collide or connect it allows the organisms to spread themselves from one landmass to another.

Part 3

Earthquakes, volcanoes, and tsunamis have all been linked to plate movement. Indicate how plate movement would create them.

1. Earthquakes: Tension and pressure build up as the plates slide past and bump into each one another and sometimes they get stuck together. But even after being stuck, the plates keep pushing and pulling against one another. Over time the pulling becomes too much and the plates break free from each other

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