Who wants to talk about life and how their day has been

Which of the following could affect the human population? a hurricane makes landfall on an uninhabited island. a deadly virus emerges that can pass from human to human. a civil war breaks out in italy. a solar eclipse occurs.

What are new social classes emerged due to advancement in agriculture ?

What do the differing approaches of booker t. washington and w. e.b du bois suggest about their views of american society?