Answer:
Wrong subject
Explanation:
Kindly repost this question in math's subject section.
Thanks
Lack of educational opportunities, lack of technology, overpopulation, and uneven distribution of wealth are factors that cause poverty in low-income nations.
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.
Because circumpolar constellations never rise or set, they provide reliable reference points for astronavigation. Knowing the circumpolar constellations in each hemisphere allows navigators to find their way using only the stars.