Select the correct answers from the list.(1 point)
One model of galaxy formation occurs when sections of gas clouds collapse into small pieces and then merge into larger pieces due to gravity. The Milky Way is an example of the ( inside out or outside in) model or the ( top down or bottom up) model.
The correct answers from the list are:
- Outside in model
- Bottom up model
The correct answer is:
- Inside out model
- Bottom up model
To determine the correct answers, let's analyze the given information.
The statement mentions two models of galaxy formation: "inside out" and "outside in" model, and "top down" and "bottom up" model. We need to identify which model the Milky Way exemplifies for both cases.
1) Inside-out or Outside-in Model: This model refers to the formation of a galaxy where sections of gas clouds collapse into small pieces and then merge into larger pieces due to gravity. If we think about how the Milky Way formed, it started with gas clouds collapsing, leading to the formation of stars, and then those stars merging together to create larger structures like galaxies. So, the correct answer for this part is "inside out."
2) Top-Down or Bottom-Up model: This model refers to the formation of a galaxy through hierarchical assembly. In other words, smaller structures like star clusters or dwarf galaxies combine to form larger galaxies. Since the given information does not specify such hierarchical assembly for the Milky Way, we can conclude that the Milky Way does not align with the "top down" or "bottom up" model. Therefore, none of these options are correct for this part.
In summary, the correct answer is "inside out" for the first part, and there is no correct answer for the second part.