Evaporation can be measured fairly easily, but ET measurements, which require measuring how much water is being transpired by plants on a daily, weekly, seasonal, or yearly basis, are much more difficult to make.
(Evaporation; can be measured fairly easily; ) (ET measurements; require; measuring how much water is being transpired by plants on a daily, weekly, seasonal, or yearly basis) (ET measurements; are; much more difficult to make)
Evaporation ET measurements ET measurements
can be measured fairly easily require are
measuring how much water is being transpired by plants on a daily, weekly, seasonal, or yearly basis
much more difficult to make