Title: Images, Charts and Diagram Alternative Text Quiz
Course: Web Accessibility MOOC for Educators

Q: In the image and text below, which of the following might be an appropriate alt text for the associated image?

If you pulled all the water in the world into one spherical drop of water, the drop of water would be 860 miles in diameter.
- A water droplete volume 860 miles in diameter in comparison to the 7918 mile diameter of Earth.
- ""
- Image of Earth and water drop in comparison
- 860 vs 7918 mile diameter
A: A water droplete volume 860 miles in diameter in comparison to the 7918 mile diameter of Earth.

Q: To ensure accessibility, all informational images need to be explained in real text somewhere in the document. Select ALL the answers that real text can be in the form of:
- An alt text description which is read aloud by screen reading software but not seen on screen.
- A caption seen by all users and read by screen readers, that includes a description of the image's significance.
- A description in the surrounding paragraph text.
- Marking all text with the "" designation
- Marking all text with the decorative code
A: An alt text description which is read aloud by screen reading software but not seen on screen.; A caption seen by all users and read by screen readers, that includes a description of the image's significance.; A description in the surrounding paragraph text.

Q: Null alt text indicates to the screen reading software to skip over the image.
- True
- False
A: True