Answer:
3. biological hazard
Explanation:
Any hazard that can be carried around the world and spread through contact can be spread quickly, specially owing to the mobility of humans. Noninfectious diseases cannot be transferred via human mobility as it is noninfectious. Chemical hazard require the chemical to be physically transported without the need for human itself. Physical hazard, as well, require the hazard to be transported or travel on its own without the influence or interference of humans. Biological hazard can be transmitted via human body as they become the carrier of the hazard.
The researchers are relying on anatomical classifications of chimpanzees and humans, as this is most appropriate when looking at adaptation and anatomy.
Because historically, many scientists have believed that we are an evolution of chimpanzees, since their anatomy resembles that of a modern person.
In the year 100 it would only be logical to try to keep protests down. With an empire stretching from Northern Scotland All the way to Rome Italy. If you tried to simply suppress a population that large every loyal Roman Man would have to drafted and sent to the Legions to fight their own disloyal subjects. While if they keep the barbs content they can turn their eye to their enemies such as Boadicea or the Parthians.
The details that you feel are most important, main details such as setting, characters, etc.
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