Protective covering and camouflage
In some research, the researchers are not able to use random assignments to divide participants among groups. Instead, they compare preexisting groups, which results in a quasi-experimental design.
Random assignments are those which are given as a matter of chance to ensure fairness and equal opportunity for all participants. Here participants forming multiple groups are with similar characteristics. So all groups are the same at the start of the experiment.
A quasi-experimental design applies a non-random method, and subjects are assigned to preexisting groups. There are some situations where true experiments can't be used for practical reasons. In such cases, a quasi-experimental design is a suitable tool.
To learn more about quasi experimental design here
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Answer:
Oceans, rivers, and underground
Explanation:
They have a much smaller military and are abundant with resources and money, are notorious for trading with just about any country, and often avoid conflict when they can due to the archipelago-wide "island time" philosophy.
