Select the correct answer from the list.(1 point)
Astronomers think that most galaxies are centered by a Select Answer , which exerts Select Answer that binds the galaxy together.
Select Answer: supermassive black hole
The correct answer is:
- Supermassive black hole
- Gravitational force
To select the correct answer, you will need to understand the given information. Astronomers believe that most galaxies are centered by a specific object, which exerts a particular force that holds the galaxy together.
Now, let's go through the answer choices and see which one fits the given information. Remember, we are looking for something that centers galaxies and exerts a force that binds them together.
A) Star: Stars are not typically the central object that holds galaxies together. While stars play a crucial role within galaxies, they do not have the necessary gravitational force to center a galaxy.
B) Planet: Similar to stars, planets are not the central objects responsible for maintaining the structure of galaxies. Planets are much smaller in size compared to galaxies and do not possess a strong enough gravitational force.
C) Black Hole: Astronomers suggest that most galaxies are centered by a supermassive black hole. These extremely dense objects have such massive gravitational pull that they hold together the galaxy they reside in. Therefore, a black hole is an appropriate answer.
D) Nebula: Nebulas are vast clouds of gas and dust in space. While nebulae play a crucial role in the formation of stars and galaxies, they are not responsible for centering and binding galaxies together.
Based on the given information, the correct answer is C) Black Hole, as it best aligns with the idea that most galaxies are centered by an object that exerts a force to bind the galaxy together.