You are walking on a graveled road. As you look down at your feet, you can make out the varied shapes, sizes and colors, and the jagged edges of the rocks, but as you look at the road in the distance, the rocks appear smaller and smoother. This differing view of the rocks illustrates:

Texture gradient

Explanation:

The phenomena described in the question statement is called texture gradient where the objects when seen from near appear different to when observed from far.

Texture gradient refers to the ways we perceive depth.  It also involves groups of objects appearing denser as they move farther away, and this phenomena can also be observed be one eye also, technically it is called monocular cue

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)