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LECTURE 10, SEPTEMBER 28, 2010

LECTURE 10, SEPTEMBER 28, 2010. ASTR 101, SECTION 3 INSTRUCTOR, JACK BRANDT jcbrandt@unm.edu. Question 1. a) the Moon’s far side b) Venus’ polar regions c) Earth’s deserts d) the Moon’s near side e) Mars’ deserts. Mercury’s surface most resembles which of these?.

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LECTURE 10, SEPTEMBER 28, 2010

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  1. LECTURE 10, SEPTEMBER 28, 2010 ASTR 101, SECTION 3 INSTRUCTOR, JACK BRANDT jcbrandt@unm.edu ASTR 101-3, FALL 2010

  2. ASTR 101-3, FALL 2010

  3. ASTR 101-3, FALL 2010

  4. ASTR 101-3, FALL 2010

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  8. ASTR 101-3, FALL 2010

  9. Question 1 a) the Moon’s far side b) Venus’ polar regions c) Earth’s deserts d) the Moon’s near side e) Mars’ deserts Mercury’s surface most resembles which of these?

  10. Both Mercury and the Moon’s far side are heavily cratered. Question 1 a) the Moon’s far side b) Venus’ polar regions c) Earth’s deserts d) the Moon’s near side e) Mars’ deserts Mercury’s surface most resembles which of these?

  11. ASTR 101-3, FALL 2010

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  15. Question 6 a) Mercury b) Venus c) Earth d) Moon e) Mars Which of the following inner solar system bodies has the densest atmosphere?

  16. Question 6 a) Mercury b) Venus c) Earth d) Moon e) Mars Which of the following inner solar system bodies has the densest atmosphere? Venus’ atmosphere has a pressure about 90 times larger than Earth’s. Many of its surface features are affected by this immense pressure.

  17. Question 7 a) nitrogen b) hydrogen c) carbon dioxide d) oxygen e) sulfuric acid The greenhouse effect on Venus is due to ______ in its atmosphere.

  18. Question 7 a) nitrogen b) hydrogen c) carbon dioxide d) oxygen e) sulfuric acid The greenhouse effect on Venus is due to ______ in its atmosphere. Venus’ atmosphere is over 96% CO2, resulting in a surface temperature exceeding 900 °F.

  19. ASTR 101-3, FALL 2010

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  25. Question 10 Which of the following inner solar system bodies has the largest volcanoes? a) Mercury b) Venus c) Earth d) Mars e) Moon

  26. Question 10 Which of the following inner solar system bodies has the largest volcanoes? a) Mercury b) Venus c) Earth d) Mars e) Moon Mars’ largest volcano, Olympus Mons, rises more than 25 km (75,000 ft) above the surrounding plains.

  27. ASTR 101-3, FALL 2010

  28. ASTR 101-3, FALL 2010

  29. Question 13 a) rainfall b) catastrophic but rare flooding c) annual melting of the seasonal ice caps d) large comets that struck Mars e) a collision with one of Jupiter’s frozen moons What was the most likely source of the water that formed the huge outflow channels of Mars?

  30. Question 13 a) rainfall b) catastrophic but rare flooding c) annual melting of the seasonal ice caps d) large comets that struck Mars e) a collision with one of Jupiter’s frozen moons What was the most likely source of the water that formed the huge outflow channels of Mars? Flooding on Mars appears to have occurred about 3 billion years ago.

  31. ASTR 101-3, FALL 2010

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  34. ATMOSPHERIC EVOLUTION-COMPARATIVE PLANETOLOGY-1 • EARTH-Primary atmosphere (Gone) vs. secondary atmosphere (Needed). Oceans, require external source. Oxygen on Earth requires life. Nitrogen relatively inert. • VENUS-Runaway Greenhouse Effect. Even if there were oceans, all water lost. See Fig. 6.34. ASTR 101-3, FALL 2010

  35. ATMOSPHERIC EVOLUTION-COMPARATIVE PLANETOLOGY-2 • MARS-May have been “Earth Like” in the past. Lost much of its atmosphere due to collisions and escape. With no Greenhouse Effect, the temperature dropped. Gases combined with the surface materials and perhaps froze out of the atmosphere. ASTR 101-3, FALL 2010

  36. Question 11 a) they are slightly bigger than Earth. b) they are more massive than Earth. c) they have thicker atmospheres than Earth. d) they formed sooner than Earth. e) they orbit at different distances from the Sun. Venus and Mars probably evolved differently from Earth because

  37. Question 11 a) they are slightly bigger than Earth. b) they are more massive than Earth. c) they have thicker atmospheres than Earth. d) they formed sooner than Earth. e) they orbit at different distances from the Sun. Venus and Mars probably evolved differently from Earth because

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