Sentence examples for has existed continuously from inspiring English sources
We find that permafrost has existed continuously since the deglaciation at the highest altitudes, whereas in large areas where permafrost currently is present, it degraded during the Holocene thermal maximum (HTM).
The wood is a mixture of ancient woodland (defined as having existed continuously since 1600), semi-ancient woodland and some more modern plantation.
Many of these display areas are used for many years; in some manakins, for example, certain cleared arenas have existed continuously for at least 30 years.
The signs that remain exist because of a loophole that allows them to be replaced by new ones as long as they have existed continuously in the same location.
We discovered that four types of state government home page have existed continuously from 1997 to 2001.
Cyanobacteria have existed continuously since the early evolution of the biosphere and the biosynthetic pathways of hydrocarbons in these prokaryotes have been genetically and biochemically identified.
Transient islands, such as those that may appear or disappear during storms, are not included unless they had existed continuously for more than 20 years at the time of data collection in 2013.
Consequently, we favour the assumption that submerged islands such as St. Brandon have existed continuously above sea level since its formation until the emergence of Mauritius, viz.
The breadline has existed since September , 1930 and is the oldest continuously operated breadline in the United States.
Shiftless Wonder Continuously variable "gearless" transmissions -- with ever-changing ratios set by moving belts -- have existed for a while, but Audi is the first company to put one in a powerful sedan.
