They contribute matter to interstellar space.
They are composed of matter from dying stars.
They are diffuse.
What do supernova remnant and planetary nebulae have in common? Select the three correct answers.(2 points)
Responses
They are composed only of hydrogen and helium.
They are composed only of hydrogen and helium.
They have planets circling them.
They have planets circling them.
They are diffuse.
They are diffuse.
They contribute matter to interstellar space.
They contribute matter to interstellar space.
They are composed of matter from dying stars.
They are composed of matter from dying stars.
1 answer