How old do you have to be to go to a hookah bar in maryland?

The bishnoi conservationist is take care of nature and grow with it, instead of exploiting it explain the statement

Around the third week of a college class, a professor decides she’s had enough, is tired of dealing with bureaucracies, and wants out. so one day, instead of coming to class, she flies to tahiti and sells souvenirs on the beach. if this happened, the college would simply assign a substitute to finish the course. what does this tell you about the nature of the authority wielded by a professor?

The cause and events that led to civil rights