Natural Systems Unit Test
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a long, high sea wave cause by an underwater earthquake
theory by German scientist Alfred Wegner stating that 300 million years ago all of Earth's land masses, which were in constant motion, collided to form one supercontinent called Pangaea
supercontinent that included all of Earth's land masses. It existed from about 300 million years ago to 200 million years ago.
theory that states that Earth's outer shell consists of plates that move causing earthquakes, volcanoes, mountains, and the formation of new crust
circular movement in a gas or liquid created by uneven heat
wearing away of Earth's surface followed by the movement to other locations of materials that have worn away
a physical action such as glaciation
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