Which number is main idea? . new technology often creates unanticipated problems. (2) automobiles, for example, provide numerous benefits, but they also pollute the air and kill about fifty thousand americans each year. (3) it is difficult to imagine life without electricity, but the generation of electricity pollutes the air and causes the thermal pollution of rivers. (4) insecticides and chemical fertilizers have performed miracles in agriculture but have polluted food and streams (and even “killed” some lakes). (5) jet planes, while us in many ways, cause air pollution (one jet taking off emits the same amount of hydrocarbon as the exhausts from ten thousand automobiles) and noise pollution near busy airports.

Number 1 is the main idea. It covers what the rest are giving examples of. It is not one specific example but rather an idea.

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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)