Answer:
Africa
Explanation:
Africa by land area, is the second largest continent.
It covers a land area of about 11,608,000 square miles. <em>This is next to Asia in land area, which covers a land area of 17,212,000 square miles.</em>
Based on historical and archaeological evidence, humans have lived in Africa for more than 5 million years. This earned Africa the name "Mother Continent".
The first hominins <em>(primates which can be considered as directly ancestral to humans )</em> in Africa emerged about 6-7 million years ago, and among the earliest anatomically modern human skulls found so far were discovered at Ethiopia
Salt water makes up 97 percent of the earth's waters as 3 percent is only fresh water.
Japan is densely populated because it is an island nation which means that there is not a lot of territory for the Japanese to spread out and inhabit. In addition Japan has a large population for the small territory that exists. A final reason is that much of life in Japan is centered around urban zones, which means that most of the population lives in these urban environments which are very dense.
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