Answer: Disease (economic disruptions) Also keep in mind that bacterica, cancer, tumors etc. were not brought up till the 1980's - 2000's
Explanation: Look at my comment because it got cencored for some reason
The Great Barrier Reef is one of the famous wonders of the world that is situated near the East Coast of the Australian continent. In addition to that, the region is most likely known to have a huge presence of coral reefs. Actually, there are many islands east of the reef and one of which is the country of Fiji.
I would believe the answer to be B. <span />
Usually when the clouds are heavy because of too much evaporation
