Read this excerpt from "heads up on sports safety." your neck can also get hurt while playing football, so many helmet designers are using materials that prevent neck injuries. one common injury is whiplash, which is a sudden hit to the head that moves the neck very quickly. neck padding can , but materials that prevent the head from turning can decrease athletic performance. one alternative is to use a thermoplastic material that responds differently to different kinds of pressure. this material is soft when moved or pressed slowly but stiffens into a hard version of its shape when hit quickly. it has been used in bulletproof vests for at least a decade. one problem and its solution presented in this article is the possibility of whiplash and the use of thermoplastic material to prevent the neck from turning very quickly. the efforts made by helmet designers to find new protective materials and the use of thermoplastic material to prevent neck injuries. the fact that neck injuries can be hard to avoid and the occurrence of whiplash when the head moves quickly. the probability of head injuries in sports and the use of bulletproof vests by athletes to stay safe.

a.) it provides a clue to solve the mystery.

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)

what is the question ?

atmospheres is the answer to your question.

explanation: