Convection is important in stars because it
A) increases the temperature of the star.
B) mixes the gases of the star.
C) transports energy outward in the star.
D) carries the neutrinos to the surface of the star where they can escape.
E) mixes the gases of the star and transports the energy outward in the star.
Correct Answer:
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Q15: The carbon-nitrogen-oxygen cycle
A)operates at a slightly lower
Q16: Interstellar gas clouds may collapse to form
Q17: The H-R diagram main-sequence of stars has
Q18: Emission nebulae are also called _ because
Q19: The diagram below is an H-R diagram.
Q21: The lowest-mass object that can initiate thermonuclear
Q22: Star clusters are important to the study
Q23: The creation of _ require(s) that a
Q24: _ are small dark nebulae about 1
Q25: Stars are born in
A)reflection nebulae.
B)dense molecular clouds.
C)HII
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