Respuesta :
Answer:
2%
Explanation:
75% of the mass contains hydrogen 25% helium and all other elements comprising only of 2%
Answer:
C. 2 percent.
Explanation:
75% of the mass in the form of hydrogen
25% as helium
All other elements comprising only 2% of the total
Assume mass of the solar nebula = 100
Remaining % = 2%
