2. Read this piece of evidence from the article "School Violence: Why Prevention Must Be a Priority.”
Violence costs the United States an estimated $425 billion in direct and indirect costs each year. Of these costs, approximately $90 billion is spent on the criminal justice system, $65 billion on security, $5 billion on the treatment of victims, and $170 billion on lost productivity and quality of life.
What would be the most reliable way to verify these numbers?
Try to find the information in an encyclopedia or a dictionary.
Write to the author to request more detailed references to the source.
Find other articles that cite the same primary source of information.
Check the information in the source that the author has cited.

Magnesium is the fourth most abundant mineral in the body and is essential to good health. magnesium is needed for more than 300 biochemical reactions in the body. it maintain normal muscle and nerve function, keep bones strong, keep one’s heart rhythm steady, and supports a healthy immune system. magnesium also regulate blood sugar levels, promotes normal blood pressure, and may play a role in energy metabolism and protein synthesis. doctors and scientists are trying to determine whether magnesium may play a role in preventing and managing disorders such as hypertension, cardiovascular disease, and diabetes. which is the main idea of this paragraph? a. the role of magnesium in human nutrition is being studied intensely. b. magnesium may be related to the body’s metabolism and other healthy functions. c. magnesium appears to contribute to hypertension, cardiovascular disease, and diabetes. d. magnesium and a healthy immune system are separate diseases.

Read these sentences from the first section of the article. because of this novel characteristic which singles out washington from other cities, coupled with the fact that the trees are now in full splendor, a short history of their appearance in the capital city is of interest. the first cherry trees were planted in washington by mrs. taft's request on april 4, 1909, just a month after she first made her home in the white house. what is the most likely reason why cobb includes these sentences in the first section? a- to establish himself as a credible authority on the topic of cherry trees b- to state the central idea and begin the narrative of how the trees arrived in washington, d.c. c- to create a sensory image for readers who are not familiar with cherry trees d- to build suspense as to how so many cherry trees arrived in washington, d.c.

What is the main conflict in this excerpt from “rumplestiltskin” by the brothers grimm?