Answer:
Unlike many of these other civilizations, the Greek civilization did not develop in a river valley, but it was surrounded by water. ... Greece is actually a series of islands or archipelagos and peninsulas. These islands and peninsulas were covered with high mountains, making travel by land very difficult.
Explanation:
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Flat land that gradually increases in elevation westward; grasslands, rocky mountains...rugged mountains stretching from alaska to mexico(high elevations).
hope this helps...
brainliest...?
        
             
        
        
        
Question: Which plates are diverging off the west coast of South America?
Answer: The Nazca Plate and South American Plate
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False; they were looking for gold, since the use of oil wasn't existent at the time.
        
             
        
        
        
Answer:
The Earth rotation 
Explanation:
The Earth rotates in its own axes, that is the reason why it can be observed the  Sun and some other starts with the naked area. And apparently all the sky rotates, but actually   is the planet the one that is constantly moving. 
If the sun is close to Earth, so the light hours during the day are longer, and the visible of sun and stars is no so common. 
When the sun is apart to the Earth, so the day hours are smaller, and the probability to observe the sun and the stars at the same time increases.