Fill in the blank in
The size of the pupil becomes ______ when you see in dim light.

Explanation

To solve the question, "The size of the pupil becomes ______ when you see in dim light," we can follow these steps:

1. **Understand the Function of the Pupil**: The pupil is the opening in the center of the eye that allows light to enter. Its size can change based on the amount of light in the environment.

2. **Consider the Effect of Dim Light**: In dim light conditions, there is less light available for the eyes to see. To compensate for this, the eye needs to allow more light to enter.

3. **Pupil Response to Light Levels**: When the light is dim, the pupil responds by expanding or enlarging. This enlargement allows more light to enter the eye, which helps improve visibility in low-light conditions.

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