English, 02.11.2020 14:10 stephstewart1209

Can man or adjust Mars environment to make it more suitable for human habitation?How?

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Reduce the amount of CO2 in the air. ...
Increase the planetary temperature. ...
Make the planet breathable. ...
Construct plants for generating super-greenhouse gases made of complex combinations of carbon,chlorine and flourine. To successfully make Mars Earth-like, we would need to raise temperatures, have water stably remain in liquid form and thicken the atmosphere. ... The only greenhouse gas on the Red Planet that's abundant enough to provide significant warming is carbon dioxide (CO2), they noted. Man cannot alter the environment in Mars to make it more suitable for human habitation. It is virtually and logistically impossible to do so for various reasons. For this to work, you need massive changes in the environment which is not possible with what we have today. Transforming Mars into a life-friendly world doesn't have to be a herculean planet-wide effort. Humanity could make patches of the Red Planet habitable relatively cheaply and efficiently by placing thin layers of silica aerogel on or above the Martian surface, a new study suggests. Proponents of terraforming Mars propose releasing gases from a variety of sources on the Red Planet to thicken the atmosphere and increase the temperature to the point where liquid water is stable on the surface. These gases are called “greenhouse gases” for their ability to trap heat and warm the climate. Scientists have considered placing Mylar disks, with a diameter of 155 miles and a weight of 200,000 tons, to reflect sunlight onto Mars and heat the surface. The idea is that over many years, the rise in temperature would release greenhouse gasses.

Answer from: Quest

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Answer from: Quest

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)

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