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Q. |
In addition to hydrogen, the other abundant element present on Sun’s surface is - |
A. | Helium |
B. | Neon |
C. | Argon |
D. | Oxygen |
Answer» A. Helium | |
Explanation: The Sun is composed primarily of the chemical elements hydrogen and helium; they account for 74.9% and 23.8% of the mass of the Sun in the photosphere, respectively. All heavier elements, called metals in astronomy, account for less than 2% of the mass. The Sun inherited its chemical composition from the interstellar medium out of which it formed: the hydrogen and helium in the Sun were produced by Big Bang nucleosynthesis. |
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