Photosynthesis I think im not 100% sure beb
Hydrogen bonds are weaker than covalent bonds.
Baking soda could reduce the acidity from citrus drinks.
The lack of detail and scaling makes the Appalachian trail map useless. An evidence coming from the story is it has a scale of 1:100,000 which compresses the places, the routes, trails of the real world into a mere centimeter in the map.