Explanation:
A nomad (Middle French: nomade "people without fixed habitation") is a member of a community without fixed habitation which regularly moves to and from the same areas. Such groups include hunter-gatherers, pastoral nomads (owning livestock), and tinkers or trader nomads.
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Extremely hot, forms in mantle, known as lava in surface, contains dissolved gasses
Answer:
i'm not sure about all but I know that you should check D
Explanation:
check D