what is a nebula?\n the core of a massive star\n a cloud of gas and dust in space\n a swirling disk with a…

what is a nebula?\n the core of a massive star\n a cloud of gas and dust in space\n a swirling disk with a lot of gravity\n the debris remaining after a supernova

what is a nebula?\n the core of a massive star\n a cloud of gas and dust in space\n a swirling disk with a lot of gravity\n the debris remaining after a supernova

Answer

Brief Explanations:

A nebula is an interstellar cloud made up of gas (mostly hydrogen and helium) and dust in space. It can be a site of star - formation. The core of a massive star is not a nebula. A swirling disk with a lot of gravity is more related to accretion disks around black holes or protostars. The debris remaining after a supernova is called supernova remnant, not a nebula in the general sense.

Answer:

a cloud of gas and dust in space