Your answer is, flood plain.
260 million years ago there was a supercontinet called Pangaea
A CBRNE incident is one where chemical, biological, radiation and nuclear hazards are present. Thus, you should:
Practice protective measures of time, distance and shielding
Do not enter zone until agent is identified
There are 501 hotels totalling 144,321 rooms under contract in the Middle East and 285 hotels totaling 53,093 rooms under contract in Africa. Lastly, there are 427 hotels totaling 67,530 rooms under contract in the Central/South America region, according to the November 2015 STR Global Construction Pipeline Report.
Hope I helped!