1. The treble clef is also known as the (1 point)

ledger line.

staff.

G clef.

F clef.

The correct answer is: G clef.

To find the answer to this question, you can start by understanding what the treble clef is. The treble clef is a symbol used in sheet music to indicate the pitch range of notes that are commonly played by instruments like the piano, violin, and flute, as well as the higher registers of the vocal range.

Now, let's break down the options provided:

1. Ledger line: A ledger line is a line used in sheet music to extend the range of a staff beyond the five lines and four spaces. While ledger lines can be used in combination with the treble clef, it is not an alternate name for the treble clef.

2. Staff: A staff is a set of horizontal lines and spaces where musical notes are written. The treble clef is one type of clef that can be used on the staff, but it is not itself called a staff.

3. G clef: Here's the correct answer! The treble clef is often referred to as the G clef because it symbolizes the note G. The treble clef wraps around the second line of the staff, indicating that it is G.

4. F clef: The F clef, also known as the bass clef, is another type of clef used in music notation to indicate the lower pitch range. It is not an alternate name for the treble clef.

So, the treble clef is also called the G clef.