Transpiration is the loss of water from a plant in the form of water vapor. absorbed by roots from the soil and transported as a liquid to the leaves via xylem. leaves, small pores allow water to escape as a vapor. less than 5% remains in the plant for growth.
The largest number that has a commonly-known specific name is a googleplex, which is a 1 followed by a googol zeros, where a googol is (a 1 followed by 100 zeros).
Infinity is an idea, so we can't say that it's the largest number possible. If we're talking about named numbers (like million, billion, trillion) then one of the biggest we can talk about is a googol. A googol is 1.0 x 10100 - which is a scientific way of writing a one followed by 100 zeros.