Which of the following is an example of a long-term change to ecosystems?

Evolution

An environmental evolution is an example of a long-term change to natural habitats. It involves processes on how ecological forces affects variation in traits, population or long-term persistence of animals or plants in an ecological environment. In addition, evolutionary mechanism also contribute to genetically base morphological, behavioral, and physiological adaptations and diversity of species across the whole ecosystem.

Amethod of procedure that has characterized natural science since the 17th century, consisting in systematic observation, measurement, and experiment, and the formulation, testing, and modification of hypotheses.

Not what goes around on earth but the universe too.