CLEAN : FILE: Africa may lose over half of bird mammal species by 2100

What does the term 'Done' signify in the context of task completion?

How might the duration of 280 seconds impact the perception of the task being completed?

In what scenarios might the phrase 'Done' be used, and what implications does it carry?

Discuss the importance of acknowledging when a task is 'Done'.

What are the potential consequences of not recognizing when something is 'Done'?