Multiple Choice
Main sequence O stars have convective cores because
A) they fuse hydrogen in the CNO cycle.
B) they fuse hydrogen in the proton-proton chain.
C) they contain mostly hydrogen.
D) they have very cool cores.
E) they have very large magnetic fields.
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q18: Some young star clusters contain large numbers
Q23: Protons and neutrons are held together in
Q27: _ are small luminous nebulae excited by
Q28: The central cores of massive main sequence
Q62: Most stars generate their energy by the
Q70: The hottest stars in the Orion Nebula
Q90: Star clusters are important to the study
Q98: The Orion region contains young main-sequence stars
Q123: Pre-main-sequence stars are above and to the
Q124: While on the main sequence a star's