An economy based on trade
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Answer:
The geocentric model of the solar system has Earth at the center.
Explanation:
Throughout history, there have been multiple different models that humans thought of or created through observation. The two most famous ones from the past are the geocentric and heliocentric, with the geocentric coming earlier and for a very long time being the model that was accepted by the majority.
The geocentric model is a model that puts Earth in the center of the universe. Earth is presented as the most important and largest object in the universe. All of the space bodies, the Sun, stars, Moon, planets, were thought to revolve around Earth. As it turned out, this model was full of mistakes. Everything about it was wrong, with the only correct thing being that the Moon is actually revolving around Earth.
Answer: Geomorphic characteristics:
Explanation:
- The high flat surface that defines a plateau can continue for hundreds or even thousands of kilometres.
- In spite of the paucity of roads, one can drive over most of that plateau, where elevations exceed 4,500 metres (about 14,760 feet).
- Plateaus dissected (eroded) by rivers have remarkably uniform maximum elevations, but their surfaces can be interrupted by deep canyons.
- In the case of some regions described as plateaus, the surface is so dissected that one does not see any flat terrain.
<u>Answer:</u>
Energy generated by nuclear fusion. When a star is formed, the dominant force is gravity. As nuclear fusion begins the radiation outwards, the inward pull of gravity is resisted by the pressure causing the star to be in equilibrium where energy generated by nuclear fusion at the star's core radiates outward and balancing the force of gravity which is pulling the star inwards. This whole is called the ''gravitational equilibrium''.