Question

question 7 of 15 match each item to its description. neutron star ? an explosion of a star nebula ? the dense remains of a star super nova ? a large mass of gas and dust

Explanation:

A neutron - star is the dense remains of a star. A nebula is a large mass of gas and dust. A supernova is an explosion of a star.

Answer:

neutron star - the dense remains of a star
nebula - a large mass of gas and dust
supernova - an explosion of a star