Welcome to the Dive Flag GeoArt series. This is a series of simple puzzles leading to simple geocaches which will make a big Dive Flag of smiley faces on your geomap. The caches themselves and the puzzles are not difficult, but getting to them may be.
All the puzzle questions are very easy and can be found online. A Geochecker is provided to reveal the actual locations once the trivia is correctly answered.
The provided hints will describe the hide and make finding it easy once you arrive at Ground Zero.
I hid all the caches in a single trip in freezing rain and 2 feet of snow, it took me a little over 2 hours, but it may take some extra time once things start growing and flowing :)
Here is the question you need to answer...
What gas is responsible for our desire to breathe ? Enter the long name not the chemical notation without any punctuation (eg: if you thought it was Brown's Gas (look it up, it exists), you would enter BrownsGas)

You can validate your puzzle solution with certitude.