<span>one way is.... many skeletons of dead animals melted together and formed the coral reef. another is ..... volcanic eruption.</span>
I would either answer sanitation(pollution) or corruption
Answer:
use bigger dams,
the underground system clear
make sponge city
Answer:
I can BARELYY see the question, pls take a better pic and then I'll edit my answer to help yu
Explanation: