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Earthquakes are typically prompted when rock underground suddenly breaks alongside a fault. This sudden launch of energy causes the seismic waves that make the ground shake. When two blocks of rock or two plates are rubbing in opposition to each other, they stick a little. They don't simply slide smoothly; the rocks seize on each other. The rocks are nevertheless pushing towards each other, however now not moving. After a while, the rocks spoil because of all the stress that is built up. When the rocks break, the earthquake occurs. During the earthquake and afterward, the plates or blocks of rock start moving, and they proceed to go till they get caught again. The spot underground the place the rock breaks is known as the focal point of the earthquake. The area proper above the center of attention (on pinnacle of the ground) is called the epicenter of the earthquake.
 
        
                    
             
        
        
        
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because harmful substances often chemicals or microorganisms contaminate a stream, river, lake, ocean, aquifer, or other body of water, degrading water quality and rendering it toxic to humans or the environment.
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https://en.wikipedia.org/wiki/Western_Roman_Empire
 
        
             
        
        
        
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Continents shift at about the same rate as your fingernails grow.
Mt. 
Ninety percent of Earth's population lives in the Northern Hemisphere.
4. California has more people than all of Canada. 
Australia is wider than the moon.
 
        
             
        
        
        
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One option would be: Those who oppose small farms.
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