Answer：
China faces serious social and economic problems associated with overpopulation in the years to come. Overly populated regions lead to degradation of land and resources, pollution, and detrimental living conditions.
<span>The surrender of the Roman
emperor in 476 CE is the specific event that historians refer as the Fall of
Rome. The term is referring to the fall of the western part of the Roman
Empire.</span>
Answer:
A satellite is an item that has been placed into orbit on purpose in the context of spaceflight. To distinguish them from natural satellites such as the Moon, these objects are referred to as artificial satellites. The Soviet Union launched Sputnik 1, the world's first artificial satellite, on October 4, 1957.
