ASTRONOMY EXAM 3 QUESTIONS AND ANSWERS 100% CORRECT!!

Based upon Figures 1 and 2, why is ultraviolet light NOT an important energy source for heating the surface of Earth? - ANSWER Ultraviolet light isn't important because not only is it absorbed by our atmosphere but if it went through it would ruin our DNA and kill us. Ozone absorbs UV light really well. What gas molecules are primarily responsible for the absorption of UV, Visible, and Infrared light? - ANSWER UV: O2/O3 Visible: N/A Infrared: H2O, CO2, O2/O3 What are the two greenhouse gases most responsible for absorbing infrared light in Earth's atmosphere? - ANSWER H2O & CO2 What type of light do you think Earth's surface primarily give off? Explain your reasoning. - ANSWER Infrared because the Earths thousands of degrees cooler than the Sun, we know it has to peak at a longer wavelength which would put it at infrared light Does Earths surface give off light at night? If so, what type? - ANSWER Yes it still gives off infrared simply because we/humans are warm Will the light given off by Earth's surface easily travel back through the atmosphere to space or will it be absorbed by molecules in the atmosphere? Explain your reasoning. - ANSWER It is absorbed and then is comes back to Earth's surface. Some does get through but most doesn't. How does the total amount of energy coming from the Sun compare to the total of energy leaving Earth to space? - ANSWER Amount of energy coming in and going out are equal Light from the sun has a peak in energy output that occurs in which type of light? - ANSWER Visible