Hello! We are currently in the Orion Arm of the Milky Way.
The main reason for the wall's construction had always been defense. Since China's first dynasty, the empire faced a near-constant threat of attack from the nomadic tribes to the north. This included those famed Mongols as well as lesser-known groups like the Xiongnu and the Göktürks.
Answer:
During Earth's orbit in the summer months, the top of the Earth (the Northern Hemisphere) is tilted toward the sun, giving us longer days. In winter, the Northern Hemisphere points away from the sun, resulting in fewer hours of sunshine and shorter days
Explanation:
Explanation:
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