3the etowah indian mounds historic site, located near the etowah river, has six mounds. three of the mounds—called a, b, and c—are the most famous features of the site. native americans built the mounds beside two, open plazas. the mounds have four sides and flat tops. native americans used steps to get to the tops of the mounds. they also built a ditch that served as a protective barrier around the mounds. in paragraph 3, what point is the author making when she describes a ditch surrounding the mounds? a) the ditch could stop others from invading the town. b) the ditch was added to make the site more beautiful. c) the native americans were skilled at making ditches. d) scientists cannot research the site because of the ditch.

The correct answer is A. The ditch could stop others from invading the town

Explanation:

In the excerpt presented the author describes the way the structure "The Etowah Indian Mounds" is organized, which was built by an indigenous group called the Muscogee. For doing this, the author describes the structure is compounds by six different mounds and these are built close to two open plazas (organization of the mounds). Additionally to this, the author describes around the mounds the Muscogee created a ditch and mentions the main function of this ditch was that it "served as a protective barrier". By using these details and especially  the detail "served as a protective barrier" the author show the purpose of stating the ditch was built around the structure of the mounds is to show to the reader the ditch was used from protection or that the ditch could stop others from invading the town as it separated the mounds where the people of the tribe were from the rest of the territory working as a barrier for possible enemies.

just took the test;

argument: "it's time to wage a war against britain to secure american freedom."

claims: "america has tried every peaceful method available for seperating from england" & "the americans' petitions to the king have been turned away by him."

21 balloons is the story of professor william sherman's travels.

in 1883, he set off from san francisco for a balloon ride over the pacific and was found a month later floating with 21 balloons in the atlantic ocean. this seemed an astounding feat and everyone wanted to know what had happened.    

professor sherman was loyal, however, and said he would tell his tale first to the western american explorers club in san francisco, of which he was a member. this built up suspense for several chapters before he began to tell of the wonders of his adventures and the amazing island of krakatoa, an island which had just been blown up by a volcano.  

the residents of krakatoa are all millionaires who live under a "gourmet government" of their own devising. we get to see all the incredible adventures that creative people with unlimited resources would create according to the author.