Factors of Production and Competition (honorable mentions are Accumulation of Capital and Private Property)
ANSWER: the ring of fire is a major area in the basin of the Pacific ocean where many earthquakes and volcanic eruptions occur.
They didn't have to worry about farming because they had slaves to do it for them.
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The greatest weakness is disintegration caused by early rains previously new development can help stay the dirt in more bone-dry atmospheres sandier soils. The better points of interest are advanced soil supplements as a side-effect of the consumer and evacuating high centralization of harming plants in the Ecosystem.
That it would take light 7.4 years to travel through space.