<span>A region of the Earth's atmosphere.</span>
A. Massai
The Massai people are a seminomadic group, who are herder-warriors of the east African plains, they inhabit South Kenya/Northen Tanzania. The San Bushmen inhabit Southern Africa, and are not seminomadic; the Ga people are an ethnic group of Ghana and Togo, meaning this cannot be the answer as it is in West Africa; and the Zulu people again are South African and not nomadic.
Thailand and Malaysia share the Kra peninsula
Answer: A constructive plate boundary creates ridges
Explanation: A constructive plate boundary, sometimes called a divergent plate margin, occurs when two tectonic plates move apart. Volcanoes are formed as magma wells up to fill the gap and molten rocks from the mantle below spread out and harden, eventually forming a ridge of new land/rock. The Mid-Atlantic ridge is an example of a constructive plate boundary.
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