September 11 Museum Opens at Ground Zero
Test your understanding of the story.
Question 1 / 5
atmosphere (n.)
atmosphere (n.)
An atmosphere of shared mourning and public satisfaction filled a large underground room at the start of the hour-long ceremony.
What is the definition of atmosphere?
![](https://gdb.voanews.com/a6df1a50-0c6c-4b03-aab1-eb34b76899e2_w250_r1_s.jpg)