The table below compares three galaxies.
1 2 3
Type of galaxy Shape Force holding it together Type of matter present
Spiral Pinwheel Gravitational Stars, gas, and dust
Elliptical Round or oval Electrical Electrons and protons
Irregular Undefined Gravitational Stars, gas, and dust
The information about galaxies is correct only in (3 points)
Group of answer choices
Column 1
Column 2
Column 1 and Column 3
Column 2 and Column 3
Column 1 and Column 3 (the type of galaxy and the type of matter present are correct)
The correct answer is "Column 1 and Column 3."
In Column 1, the information about the types of galaxies is correct:
- Spiral galaxies have a pinwheel shape.
- Elliptical galaxies have a round or oval shape.
- Irregular galaxies have an undefined shape.
In Column 3, the information about the type of matter present in galaxies is correct:
- Spiral and irregular galaxies have stars, gas, and dust.
- Elliptical galaxies have electrons and protons.