Which statements describe elliptical galaxies? Select the two correct answers.(1 point) Responses They typically contain very little gas and dust. They typically contain very little gas and dust. They include the Milky Way. They include the Milky Way. They include the universe's largest galaxies. They include the universe's largest galaxies. They are the most common galaxy type.
The correct statements about elliptical galaxies are:
1. They typically contain very little gas and dust.
2. They are the most common galaxy type.
Therefore, the correct answers are:
- They typically contain very little gas and dust.
- They are the most common galaxy type.
How does the appearance of spiral galaxies vary? Select the two correct answers.(1 point) Responses Some are more elongated in shape than others. Some are more elongated in shape than others. They vary in the brightness of stars located on their arms. They vary in the brightness of stars located on their arms. Some have a band of stars and materials through their middle, but others do not. Some have a band of stars and materials through their middle, but others do not. They vary in how tightly their arms are wound
The correct statements about the appearance of spiral galaxies are:
1. They vary in the brightness of stars located on their arms.
2. They vary in how tightly their arms are wound.
Therefore, the correct answers are:
- They vary in the brightness of stars located on their arms.
- They vary in how tightly their arms are wound.
According to astronomers, how many galaxies are distributed across the observable universe?(1 point) Responses several thousand several thousand 50 50 1 trillion 1 trillion 100 billion
According to astronomers, there are approximately 100 billion galaxies distributed across the observable universe.
The correct statements about elliptical galaxies are:
1. They typically contain very little gas and dust.
2. They are the most common galaxy type.
Therefore, the correct options are:
- They typically contain very little gas and dust.
- They are the most common galaxy type.
The correct statements describing elliptical galaxies are:
1. They typically contain very little gas and dust.
2. They are the most common galaxy type.
To arrive at these answers, we need to evaluate each statement one by one:
- "They typically contain very little gas and dust." This statement is correct. Elliptical galaxies are known for their lack of interstellar matter such as gas and dust. They consist mainly of old stars.
- "They include the Milky Way." This statement is incorrect. The Milky Way is not an example of an elliptical galaxy. It is a barred spiral galaxy.
- "They include the universe's largest galaxies." This statement is partially correct. Elliptical galaxies can indeed be quite large, but it is not accurate to say that they exclusively include the universe's largest galaxies. There are other types of galaxies, such as spiral galaxies, that can also be extremely large.
- "They are the most common galaxy type." This statement is correct. Elliptical galaxies are indeed the most common type of galaxy in the universe. They are often found in galaxy clusters.
From the analysis above, we can conclude that the correct statements are:
1. They typically contain very little gas and dust.
2. They are the most common galaxy type.