Which source would be most in researching this question?
have helmet laws decreased the number of childhood head injuries?

a. the biography of a professional cyclist whose career ended after a head injury
b. a website featuring an online petition to enact helmet laws in every state
c. a medical journal article titled "cause and treatment of childhood concussions"
d. a newspaper article titled "number of concussions in counties with and without helmet laws"

The correct answer is D. A newspaper article titled "Number of Concussions in Counties With and Without Helmet Laws"

Explanation:

In research, which is the process of solving a problem or question, the word source refers to documents or similar materials such as books, articles or even websites where you can information about the topic the research question is about. This means the source should provide information to answer the question proposed or at least clarify one section of it. In this case the research question is "Have helmet laws decreased the number of childhood head injuries?" which means the author of this research process needs a source that shows the effect of helmet laws have in terms of the number of childhood head injuries or that clarify whether this type of laws can decrease or increase these type of injuries. Because of this, the most helpful source for answering this question is "A newspaper article titled "Number of Concussions in Counties With and Without Helmet Laws" as this will provide information about the number of injuries in areas with helmet laws in comparison to those without helmet law, which is exactly the type of information required for answering the research question proposed.

D). "A newspaper article titled "Number of Concussions in Counties With and Without Helmet Laws."

Explanation:

The source that would prove to be most helpful in researching the given question would be 'A newspaper article titled "Number of Concussions in Counties With and Without Helmet Laws"' as it would propose an authentic and qualitative report reflecting the effects of wearing helmets on road. The article would substantiate the claim/argument statistically which was raised by the given research question that wearing helmets has decreased the number of childhood head injuries and establish the credibility of the author among the audience. Thus, option D is the correct answer.

1. read the following excerpt from franklin d. roosevelt's "fireside chat 19":

on the other side of the picture, we must learn also to know that guerilla warfare against the germans in, let us say serbia or norway, us; that a successful russian offensive against the germans us; and that british successes on land or sea in any part of the world strengthen our hands.

remember always that germany and italy, regardless of any formal declaration of war, consider themselves at war with the united states at this moment just as much as they consider themselves at war with britain or russia. and germany puts all the other republics of the americas into the same category of enemies. the people of our sister republics of this hemisphere can be honored by that fact.  

the true goal we seek is far above and beyond the ugly field of battle. when we resort to force, as now we must, we are determined that this force shall be directed toward ultimate good as well as against immediate evil. we americans are not destroyers — we are builders.

analyze the effectiveness of this excerpt. how does it function within the speech as a whole? how does the structure of the excerpt to convey the speech's purpose and key points? support your argument with evidence from the speech. (10 points)

answer: the first one climax ,the second   is plot

explanation: