Part 1: The four astronomical bodies would you choose to represent the four labels in the diagram are (A universe B galaxy C solar system D Mars) because a universe holds galaxys and galaxys holds solar systems witch holds planets like Mars
<span>Part 2: The hierarchical level D is different from the rest because D or mars is a planet and unlike all there other astronomical bodies it dose not hold other astronomical bodies with in it. </span>
According to the population density information, it is False that Vietnam is Southeast Asia's largest population center.
This is because Southeast Asia's largest population center is Indonesia, with a population of 273,523,615 people.
The second most populated center in this region is the Philippines, with a population of 109,581,078 people.
While Vietnam came third with a population of 97,338,579 people.
Hence, in this case, it is concluded that it is False that Vietnam is Southeast Asia's largest population center.
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There are two main forms of return migration: voluntary return and forced return. Data on forced return are usually collected by national and international statistical offices, border protection and immigration law enforcement agencies. The International Organization for Migration (IOM) collects data on assisted voluntary return and reintegration programmes that it implements worldwide.
Answer:
Iron is a relatively dense element under normal conditions, and under the extreme pressure at the Earth's core it would be crushed to an even higher density, so an iron core would account for all that missing mass.
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Explanation:
