Consider the sun and earth as a single system. how does the law of conservation of energy apply to this system?

Law of conservation of energy express that energy can neither be created nor destroyed; it can only be transformed or transferred from one form to another. In this case, The Sun is a source of energy that controls the circulation of the atmosphere. The Sun emits energy in the form of electromagnetic radiation, where a part is intercepted by the Earth-atmosphere system and converted into other forms of energy, such as heat and kinetic energy.

Solar energy is distributed on Earth, and responsible by the oceanic winds, that transport the heat from the tropics to the poles, to achieve an energy balance. These causes reside in the movements of the Earth in relation to the Sun, and also in variations in the surface of the Earth.

catherine roberts for ignoring me

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)