The correct answer is Accretion Disc. Here's the step by step process:

1. A shockwave passes by, which can be caused by a nearby supernova or other high energy event. This shockwave disturbs the gas and dust in space.

2. The force of gravity starts to bring the gas and dust inwards. Gravity pulls all matter together, and in space, gas and dust are no exception.

3. As the gas and dust move inwards, it begins to circle due to the conservation of angular momentum. This is similar to how an ice skater spins faster as they pull their arms in.

4. This circling gas and dust forms an accretion disc. An accretion disc is a structure formed by diffuse material in orbital motion around a massive central body, in this case, the forming star.

The other options are not correct because they represent different stages or aspects of stellar evolution. For example, a protostar is the 'next step' after the accretion disc, when the material has accumulated enough to start nuclear fusion. A molecular cloud is a type of interstellar cloud where stars are often born. A planetary nebula and a supernova are both end stages of a star's life.

Question

The correct answer is Accretion Disc. Here's the step by step process:

1. A shockwave passes by, which can be caused by a nearby supernova or other high energy event. This shockwave disturbs the gas and dust in space.

2. The force of gravity starts to bring the gas and dust inwards. Gravity pulls all matter together, and in space, gas and dust are no exception.

3. As the gas and dust move inwards, it begins to circle due to the conservation of angular momentum. This is similar to how an ice skater spins faster as they pull their arms in.

4. This circling gas and dust forms an accretion disc. An accretion disc is a structure formed by diffuse material in orbital motion around a massive central body, in this case, the forming star.

The other options are not correct because they represent different stages or aspects of stellar evolution. For example, a protostar is the 'next step' after the accretion disc, when the material has accumulated enough to start nuclear fusion. A molecular cloud is a type of interstellar cloud where stars are often born. A planetary nebula and a supernova are both end stages of a star's life.

Knowee AI · Accepted Answer

The correct answer is Accretion Disc. Here's the step by step process:

1. A shockwave passes by, which can be caused by a nearby supernova or other high energy event. This shockwave disturbs the gas and dust in space.

2. The force of gravity starts to bring the gas and dust inwards. Gravity pulls all matter together, and in space, gas and dust are no exception.

3. As the gas and dust move inwards, it begins to circle due to the conservation of angular momentum. This is similar to how an ice skater spins faster as they pull their arms in.

4. This circling gas and dust forms an accretion disc. An accretion disc is a structure formed by diffuse material in orbital motion around a massive central body, in this case, the forming star.

The other options are not correct because they represent different stages or aspects of stellar evolution. For example, a protostar is the 'next step' after the accretion disc, when the material has accumulated enough to start nuclear fusion. A molecular cloud is a type of interstellar cloud where stars are often born. A planetary nebula and a supernova are both end stages of a star's life.

A shockwave passes by and the force of gravity starts to bring the gas and dust inwards; it begins to circle and forms a(n) _______.*1 pointPlanetary NebulaMolecular CloudProtostarAccretion DiscSupernovaStar

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