Supernova remnant and planetary nebulae have ; ( B, C, F ) in common
Supernova remnant is a by product gotten from the explosion of star(s) in the galaxy ( supernova galaxy ). which is bounded by a shock waves and contains materials emanating from the explosion of star(s)
A Planetary nebulae looks like a planet when viewed through a small telescope. but it is actually a bright shell of hot gas continuously expanding. and it is a by product of the breaking down of a star(s) life ( usually low-mass star )
Therefore we can conclude that the similarities between a supernova remnant and a planetary nebulae is that They are composed of matter from dying stars ,They emit non-visible radiation, They contribute matter to interstellar space
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