List the three ways in which water reaches the atmosphere and tell which way accounts for the most of the water in the atmosphere

1. Direct evaporation from water bodies like, sea, rivers, and oceans
2. Moisture from the land (you must have seen land dries out)
3. Moisture from the plant (small capillaries from the plants sucks water from the land and goes to atmosphere in form of vapour from leaves,).

And there you go!