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Answer:
Adapt
Explanation:
They must adapt, or be able to change their behavior to survive in that environment, or they will be forced to move elsewhere for resources to survive.

The Buddhist theocracy run by Dalai Lama before it was seized by China :

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The answer is B) Extremely fertile soils
4.54 billion years<span>The "best" age for the Earth is based on the time required for the lead isotopes in four very old lead ores (galena) to have evolved from the composition of lead at the time the Solar System formed, as recorded in the Canyon Diablo iron meteorite. This "model lead age" is <span>4.54 billion years</span></span>