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.
B. The rivers were used to sustain life by growing crops and food and having an unlimited drinking supply.
It creates a shadow.Hope I helped.
D
I'm actually just guessing
The study of places on Earth. Like countries, oceans, etc.
