QuestionJuly 7, 2025

According to present scientific understanding of the Milky Way's formation, which of the following statements are true? Select al that apply. Halo stars formed before disk stars. Disk stars formed before halo stars. The galaxy formed from the collapse of a single, giant protogalactic cloud. Halo stars are stars that are born in the disk and ejected into the halo by gravitational encounters. The protogalatic cloud() contained essentially no elements besides hydrogen and helium.

According to present scientific understanding of the Milky Way's formation, which of the following statements are true? Select al that apply. Halo stars formed before disk stars. Disk stars formed before halo stars. The galaxy formed from the collapse of a single, giant protogalactic cloud. Halo stars are stars that are born in the disk and ejected into the halo by gravitational encounters. The protogalatic cloud() contained essentially no elements besides hydrogen and helium.
According to present scientific understanding of the Milky Way's formation, which of the following statements are true? Select al that apply. Halo stars formed before disk stars. Disk stars formed before halo stars. The galaxy formed from the collapse of a single, giant protogalactic cloud. Halo stars are stars that are born in the disk and ejected into the halo by gravitational encounters. The protogalatic cloud() contained essentially no elements besides hydrogen and helium.

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Answer

Halo stars formed before disk stars; The galaxy formed from the collapse of a single, giant protogalactic cloud; The protogalactic cloud(s) contained essentially no elements besides hydrogen and helium. Explanation 1. Identify true statements based on scientific understanding Halo stars formed before disk stars. The galaxy formed from the collapse of a single, giant protogalactic cloud. The protogalactic cloud(s) contained essentially no elements besides hydrogen and helium.

Explanation

1. Identify true statements based on scientific understanding<br /> Halo stars formed before disk stars. The galaxy formed from the collapse of a single, giant protogalactic cloud. The protogalactic cloud(s) contained essentially no elements besides hydrogen and helium.
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