Question 5 how do astronomers know what the outer

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QUESTION 5 How do astronomers know what the outer layers of the Sun are made of? several spacecraft with good shielding have approached the Sun and obtained samples we send graduate students there to get samples the surface layers of Mercury have been laid down by the Sun and are thus made of the same material as the Sun the Sun's wind gives us an accurate measure of all the di±erent elements in the Sun we take an absorption line spectrum of the Sun, and the absorption lines tell us what elements are present in the outer layers 1 points Saved Question Completion Status: Remaining Time: 35 minutes, 37 seconds.
QUESTION 6 Our best evidence and theoretical calculations indicate that the solar system began with a giant spinning system of gas and dust that scientists call: 1 points Saved Click Save and Submit to save and submit. Click Save All Answers to save all answers.
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QUESTION 7 In the four terrestrial planets, the densest, heaviest materials are at the center and not evenly distributed throughout the planet. Scientists interpret this observation to mean that: 1 points Saved
QUESTION 8 Sunspots are darker than the regions of the Sun around them because they consist of di±erent elements than the rest of the Sun they move much faster around the Sun than other material and thus heat up they are located in the corona and not on the photosphere they are cooler than the material around them (although still very hot compared to Earth temperatures) 1 points Saved

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