The difference between them is the Pure Sine Wave inverter produces a better and cleaner current. They are also considerably more expensive. You might find it practical to get a small Pure Sine Wave inverter for any special need you may have, and also a larger Modified Sine Wave inverter for the rest of your applications.
Elm Trees can live over 100 years in their natural environment.
Species that Live Longest. Many oak trees live longer than 150 years, although few reach the age of one southern live oak (Quercus virginiana) in Louisiana, which American Forests, a conservation organization, estimated to be 1,500 years old.