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).
But here's the really crazy thing...some of these incomprehensibly huge numbers are crucial for understanding the world. When I say the biggest number in the universe, what I really mean is the biggest meaningful number, the largest possible number that is in some way useful. There are lots of contenders for this title, but I'll warn you now: there is a very real risk that trying to understand all this will blow your mind.