Plasma Tailthe Nucleusthe Comathe Multiple Choice

Plasma Tailthe Nucleusthe Comathe Multiple Choice


  1. Question 1

    4 PointsWhat is Eris?


  2. Question 2

    4 PointsWhat is a meteorite?


  3. Question 3

    4 PointsWhen a comet passes near the Sun, part of it takes on the appearance of a large, bright ball from which the tail extends. This part is called ________.


  4. Question 4

    4 PointsWhich of the following statements about comets and asteroids is true?


  5. Question 5

    4 PointsPluto is most like a


  6. Question 6

    4 PointsPlanetary rings are


  7. Question 7

    4 PointsHow is Jupiter’s magnetic field?


  8. Question 8

    4 PointsWhich of the following best explains why many jovian moons have been more geologically active than the Moon or Mercury?


  9. Question 9

    4 PointsWhy does Jupiter have several distinct cloud layers?


  10. Question 10

    4 PointsAccording to current understanding, which of the following is required in order for a planet to have rings?


  11. Question 11

    4 PointsWhat’s the fundamental reason that Mars, unlike the Earth, has become virtually geologically dead?


  12. Question 12

    4 PointsFrom center to surface, which of the following correctly lists the interior layers of a terrestrial world?


  13. Question 13

    4 PointsWhy does the burning of fossil fuels increase the greenhouse effect on Earth?


  14. Question 14

    4 PointsWhich of the following can act like a long-term “thermostat” for the Earth’s average temperature?


  15. Question 15

    4 PointsVenus has a thicker atmosphere than Earth.


  16. Question 16

    4 PointsAccording to our theory of solar system formation, why do we find some exceptions to the general rules and patterns of the planets?


  17. Question 17

    4 PointsAccording to our theory of solar system formation, what are asteroids and comets?


  18. Question 18

    4 PointsIn essence, the nebular theory holds that ________.


  19. Question 19

    4 PointsWhich planet (besides Earth) has been visited by the largest number of robotic spacecraft?


  20. Question 20

    4 PointsWhat is the giant impact hypothesis for the origin of the Moon?


  21. Question 21

    4 PointsWhat do we mean by the interstellar medium?


  22. Question 22

    4 PointsEnergy balance in the Sun refers to a balance between ________.


  23. Question 23

    4 PointsHow do disk stars orbit the center of the galaxy?


  24. Question 24

    4 PointsWhy do sunspots appear dark?


  25. Question 25

    4 PointsWhat do sunspots, solar prominences, and solar flares all have in common?