Humans are social animals, so without the company of other humans they would eventually go mad or die.
Answer:Dwelling housing units
Explanation:Dwelling housing units are multiple houses or units within one building in which several family members live in. It buildings that are contained in one complex , these building are built next to each other or top and bottom units.
Answer: B)Negative reinforcement
Explanation:Negative reinforcement is the way for teaching and making others understand about the particular behavior.It helps in the elimination of the bad/negative consequences in return of the stimulus.
The focused behavior gets induced and bad thing will be out of mind is the strategy behind it.Other options are incorrect as they don't work as stimulus behavior will not be take the unpleasant thoughts.Thus the correct option is option(B).
Its been a while since I did this topic, but I believe it was mostly because under communism there was little work for intellectuals, so they were often the ones who left the country. This resulted in a 'brain drain', a lack of knowledgable people. I seem to remember reading about the entire maths department of a university just up and leaving at one point. You could also argue that it was damaging for the image of communism if so many people were trying to leave.
