Answer:
Flood barriers are very affordable, lightweight metal barriers may be installed in different places and taken away when water disappears.
Explanation:
Chimpanzees are more closely related while orangutans are the least closely related of the apes. Gorillas are in the middle of the two.
Answer: if change happens naturally in an ecosystem it will be better evolved to handle it. But at the expense it happens very slowly
Explanation: my answer
