During electrolysis water molecules are split into their constituent atoms, Oxygen gas is produced at one electrode and Hydrogen gas is produced at the other.
there wil be a lot less than there was starting with because the plant uses the water for part of photosynthesis, it takes sun light, water and co2(carbon dioxide) and makes o2( oxygen) and energy...
Water is evaporated by the sun, then the water vapor rises through the atmosphere. Then when water vapor starts to cool down they become water droplets that forms the clouds. Commonly some believe...