Having to deal with USA's problems itself is a burden. I don't think he solved them either. If he did solve them, we wouldn't be living in a USA like today. #DONALD TRUMP :(
In the mock-up of an airplane cabin, heated yellow bags were placed where people would normally sit in order to replicate the situation where the plane is full of people. The yellow bags were heated since human body temperature is generally at 37 degrees Celcius. This is to correctly construct an experimental model of the airplane cabin.
Because time is a social construct. It was only created when civilization was created. Since there was no one to create time in the beginning of Earth we had to create it as far back as we could. So basically science as stuff created time to help people. Time wasn't a thing back then. It only became a thing when people became a thing.
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Well, what i think the answer would be is 2. the universities did not offer enough classes.
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