According to astronomers, how many galaxies are distributed across the observable universe?(1 point) Responses 100 billion 100 billion 50 50 1 trillion 1 trillion several thousand
According to astronomers, there are approximately 100 billion galaxies distributed across the observable universe.
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.
How does the appearance of spiral galaxies vary? Select the two correct answers.(1 point) Responses They vary in how tightly their arms are wound. They vary in how tightly their arms are wound. Some are more elongated in shape than others. Some are more elongated in shape than others. 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 the brightness of stars located on their arms.
The correct statements about the appearance of spiral galaxies are:
1. They vary in how tightly their arms are wound.
2. Some have a band of stars and materials through their middle, but others do not.