Responses stars stars dust dust dark matter dark matter gas

Which component that makes up the bulk of all galaxies?(1 point)

gas

The correct answer is gas. Gas is the component that makes up the bulk of all galaxies. To arrive at this answer, you can start by considering the various components of a galaxy. The main components include stars, dust, dark matter, and gas.

While stars are certainly an important part of galaxies, they do not make up the majority of a galaxy's mass. Dust, although present, is also typically a small fraction of a galaxy's overall mass.

Dark matter is a mysterious substance that is believed to make up a significant portion of a galaxy's mass. However, it is not the component that makes up the bulk of a galaxy. Although dark matter plays a crucial role in the structure and dynamics of galaxies, it is not directly observable and does not account for the majority of a galaxy's mass.

Gas, on the other hand, is the primary component that makes up the bulk of all galaxies. It includes various types of interstellar gas, such as hydrogen and helium, as well as other heavier elements. This gas is essential for the formation and evolution of stars, as well as the processes that drive galaxy dynamics.

In summary, while stars, dust, dark matter, and gas all contribute to the makeup of galaxies, it is the gas that accounts for the majority of a galaxy's mass.