Final answer:
When working in WebTA, hitting the browser "back" button may cause the loss of unsaved data.
Step-by-step explanation:
When working in WebTA, if you hit the browser "back" button, it may cause the loss of any unsaved data or changes made on the current page. This is because the "back" button takes you to the previous page you visited, and it does not retain any information entered on the current page.