End of Permian extincts were complex: 5 events over 5 million years.A. TrueB. False

Answer

The correct answer is A. True.

Explanation

The end of the Permian period, which occurred around 252 million years ago, is known for the most significant mass extinction event in Earth's history, often referred to as the "Great Dying." This period is characterized by a series of complex events that unfolded over roughly five million years, leading to the extinction of about 90% of marine species and 70% of terrestrial vertebrate species.

Recent research indicates that this extinction was not a single event but rather a series of phases that included multiple environmental changes such as volcanic eruptions, climate change, ocean acidification, and anoxic conditions in the oceans. These events worked in tandem, causing significant stress on ecosystems and leading to the gradual extinction of countless species. Therefore, it is accurate to say that the end of the Permian was marked by complex and multifaceted extinction processes over an extended timeframe.