Read the following excerpt:

have you ever wondered what keeps a hot air balloon flying? the same principle that keeps food frozen in the open chest freezers at the grocery store allows hot air balloons to fly. it's a basic principle: hot air rises and cold air falls. so while the super-cooled air in the grocery store freezer settles down around the food, the hot air in a hot air balloon pushes up, keeping the balloon floating above the ground. in order to understand more about how this principle works in hot air balloons, it to know more about hot air balloons themselves.

answer the following question:

using the information presented in paragraph 1, it can be understood that which of the following statements is false?

a. air goes up and out the top of a chimney when you light a fire.
b. cool air collects about the ceiling when you open a refrigerator.
c. smoke from a candle rises after you blow out the flame.
d. cold air coming from an air conditioning vent settles about the floor.

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)

a is is the correct answer