A point P lies on x-axis and another point Q lies on y-axis.
Write the abscissa of the point Q.

Answer

To solve the question, we need to understand the concepts of coordinates in the Cartesian plane.

### Step-by-Step Solution:

1. **Understanding the Axes**:
- The x-axis is the horizontal line where the y-coordinate is always zero. Any point on the x-axis can be represented as (x, 0).
- The y-axis is the vertical line where the x-coordinate is always zero. Any point on the y-axis can be represented as (0, y).

2. **Identifying Points P and Q**:
- Point P lies on the x-axis. Therefore, its coordinates can be represented as (x, 0), where x can be any real number.
- Point Q lies on the y-axis. Therefore, its coordinates can be represented as (0, y), where y can also be any real number.

3. **Defining Abscissa**:
- The term "abscissa" refers to the x-coordinate of a point in a Cartesian coordinate system.

4. **Finding the Abscissa of Point Q**:
- Since point Q is located on the y-axis, its x-coordinate (abscissa) is always 0.
- Thus, the abscissa of point Q is 0.

### Final Answer:
The abscissa of point Q is 0.

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