What mobile operating system is the Fire OS used by Amazon's Kindle Fire devices based on?

What does an alpha matte do?

The following questions are not in the student's Classroom in a Book. What will be an ideal response?

If you want to ensure consistent formatting across all elements of a website, it's a good idea to use external CSS style sheets instead of HTML styles or embedded styles.

Answer the following statement true (T) or false (F)