A group of extremely young stars containing approximately 5 to 50 hot O and B stars is called a(n)?Group of answer choicesassociationopen clusterglobular clusterplanetary nebulae

Which of the following correctly describes the stages of the life of a star like the sun in the correct order?Group of answer choicesProto-star, red giant, main sequence, white dwarfProto-star, main sequence, red giant, white dwarfWhite dwarf, main sequence, red giant, proto-starRed giant, proto-star, main sequence, white dwarf

Which of these stars would be the hottest?Group of answer choicesG2M10A0K9B0

Which of these evolutionary paths is the fate of our Sun?Group of answer choicesnovabrown dwarfplanetary nebulapulsarsupernova of type II

At the center of our Galaxy liesGroup of answer choicesa black hole of millions of solar masses.a huge emission nebula.the largest of all globular clusters.a quasar.an intensely bright visible superstar.

What is the name of the object that the Sun and planets formed from? (It is a rotating cloud of gas and dust)Group of answer choicessolar nebulaOort CloudKuiper BeltAsteroid Belt