The outermost layer of the Sun is called

A. Chromosphere
B. Photosphere
C. Corona
D. Lithosphere
Answer» C. Corona
Explanation: The outermost layer of the sun is the corona. Only visible during eclipses, it is a low density cloud of plasma with higher transparency than the inner layers. The white corona is a million times less bright than the inner layers of the sun, but is many times larger. A corona is a type of plasma "atmosphere" of the Sun or other celestial body, extending millions of kilometers into space, most easily seen duringa total solar eclipse, but also observable in a coronagraph.
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