Saturday 28th January 2023
Difficulty: Hard
The Sun (Quiz #71)
A large group of sunspots stretching about 320,000 km across. Photo: NASA (Public domain)
The Sun is the star at the center of the Solar System, and is the most important source of energy for life on Earth.
1. What is the most abundant element in the Sun?
2. What is the temperature of the surface of the Sun (roughly)?
3. Sunspots are visible as dark patches on the Sun's surface. What are they caused by?
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