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Welcome to Doors Challenge answers page, this page has answers to Doors Challenge Level 187. We are updating the answers by solving them manually using the hints provided so that we will be updating the hints along with the answers.
Hints: Paper on Table Doors Challenge
Hints : What Did we Breathe Before the Oxygen was Discovered Doors Challenge
Doors Challenge Level 187 Answer
- OXYGEN
Done with this level of Doors Challenge? Need help with Doors Challenge Level 188, click on the link Level 188. Do you need help with any other levels, check our Doors Challenge Answers page.