Coral reefs are here in our world, and we have a duty to protect them. Things like fertilizers and pesticides are the things that are harming them, which comes from humans and causes the reefs to get sick.
If that answer isn't enough, then maybe this one will help?
Over fishing occurs when humans fish more than they should in a coral reef and eventually the fish can no longer thrive, and they simply disappear. Not only is this bad for the reef, because it too will then die, but them humans will no longer have that source of fish, which is what man groups of people and fisher man need to keep their businesses running and is where people get a main source of food. Fishing is what keeps many people alive and keeps smaller fishing villages running, and without it, they cannot survive either. <span />
Very dangerous nd limited resources
The biosphere is the portion of the earth that supports living things.
Unconformites is the answer to the question
All stars would appear to move along hovers around the sky parallel to your mindset. The heavenly circle turns around the north divine shaft, which is situated at your peak at the north post. , All stars would ascend at right edges to the skyline in the east and set at right edges to the skyline in the west. The heavenly circle pivots around the divine shafts, which are situated in your sights at the equator.