The physical map shows the landforms and bodies of water in specific areas on Earth's surface, the political map hows features humans have created such as the boundaries between states, provinces, territories, and countries. The topographic map shows land elevations. However all of them represent Earth's surface on different way.
China has little environmental restrictions on industries making them extremely profitable at the expense of the environment, that's one of the reasons why China is one of the fastest-growing economies
Answer: In Medieval Europe, knights pledged loyalty to vassals, who in turn pledged theirs to powerful lords, and serfs labored in the fields.
Explanation:
A rigid hierarchy refers to one where people who are born into a certain position in life, find it quite hard to move from it or rather one where there are different social classes and people had to be classified in one class for the system to work.
The system during medieval times was much like this. Social classes existed that determined a person's worth in society such as the knights, vassals, Lords and Royals. There was also the serfs who were considered the lowest in the hierarchy.
The migration of the Moon away from the Earth is mainly due to the action of the Earth's tides. The Moon is kept in orbit by the gravitational force that the Earth exerts on it, but the Moon also exerts a gravitational force on our planet and this causes the movement of the Earth's oceans to form a tidal bulge.
Saturn is the most similar