This post has the solution for Upper atmosphere layer crossword clue. The New York Times Mini Crossword is a mini version for the NYT Crossword and contains fewer clues then the main crossword. You can play the mini crossword first since it is easier to solve and use it as a brain training before starting the full NYT Crossword with more than 70 clues per day.
Upper atmosphere layer
SOLUTION:OZONE
Check the answers for more remaining clues of the New York Times Mini Crossword December 5 2021 Answers.