The death of a star occurs when its _____ stops.
--nuclear fusion
--nebular clouds
--stellar gravity
--rotation
3 answers
It is the nuclear fusion that creates the heat which radiates energy from the star.
Nuclear fusion
According to the condensation theory, the most important factor for the formation of our planets was _____.
the gravitational pull of the Sun
the interstellar dust attracting heat away from the protosun
the process of nuclear fusion
the nebular cloud condensing
the gravitational pull of the Sun
the interstellar dust attracting heat away from the protosun
the process of nuclear fusion
the nebular cloud condensing
2 answers