The difference between ordinary and digital mail can be illustrated by imagining that alice wants to send out invitations to her birthday party, and that eve, who has not been invited, wants to know the time and place of the party. if alice uses the traditional method of posting letters, then it is very difficult for eve to intercept one of the invitations. . in comparison, eve's task is made considerably easier if alice sends her invitations by e-mail. how does the author support the claim that ordinary and digital mail are very different? by citing statistics about both kinds of mail by offering quotes from experts on the subject by relating a personal experience of both kinds of mail by sharing a hypothetical story as an example of the subject

Read the passage. the dust bowl during the 1930s, extreme drought and high winds made life incredibly difficult in the great plains region of the united states. in many areas, rainfall was forty percent less than normal. the soil became extremely dry, and when strong winds blew, they created tremendous dust storms. these so-called “black blizzards” were so thick that they made daylight seem like dusk. during this terrible period, the great plains region of the united states was named the “dust bowl.” over the next few years, the drought continued, and the winds created more dust storms. in some places, the drought and high winds lasted for eight years. many people wondered if the black blizzards would ever end. which statement about this paragraph’s main idea is true? this paragraph’s main idea is stated in the topic sentence. there are not enough details to support the main idea. this paragraph’s main idea is implied. this paragraph does not express a main idea.