What are the reasons for the five mass extinction on Earth?
The reasons for the five mass extinction on Earth were as follows: 1. ** Ordovian mass extinction (about 440 million years ago, ranked second among the five mass extinction events)**: The main reason is that the global climate has cooled, the Earth has entered the Ice Age, and the sea level has dropped significantly. At that time, there was a more mainstream hypothesis that a star 60 million light-years away from Earth exploded into a supernova. The gamma-ray burst produced by the two poles hit the Earth, and the energy produced for 10 seconds contained the energy of 10 suns, causing the Earth's atmospheric molecules to denature. 30% of the oxygen layer was taken away, and a large amount of sunlight directly reached the Earth's surface, causing the death of shallow sea algae, which led to the death or even extinction of marine life. 2. ** Devonian mass extinction (from the late Devonian to the early Charcoal period, about 377 million years ago, the longest of the five mass extinction)**: It may be the result of multiple asteroid impacts and volcanic eruptions. During the late Devonian period, plants moved to land without natural enemies and grew in large numbers, destroying the carbon-oxygen cycle. The increase in oxygen content and the decrease in carbon dioxide content led to a drop in the Earth's temperature. Many creatures could not adapt to the cold and went extinct. In addition, many asteroid impacts caused a small number of creatures to go extinct each time, but they accumulated to cause mass extinction. 3. ** The mass extinction at the end of the Permian period (251 million years ago, the most serious of the five mass extinction)**: Probably caused by the eruption of the mantle plume. In the late Permian, all the land was compressed into the Pangu supercontinent, and then separated due to volcanic activity and earthquakes. The eruption of the super mantle plume triggered volcanic eruptions, and volcanic debris ignited the forest, raising the temperature of the earth. The subsequent climate change led to the extinction of life. 4. ** Early Triassic-Period mass extinction **: The reference materials did not explicitly mention the specific cause of this mass extinction. 5. ** End of the cretaceous period mass extinction (65 million years ago)**: The view that led to the mass extinction of life is usually believed to be the impact of large asteroids or comets on Earth, the eruption of super volcanoes on Earth, the Earth experiencing a large ice age, and other factors that may change the climate of the entire Earth. Read more exciting novels for free
Earth's first five mass extinction times
The first five extinction periods on Earth were: 1. The first mass extinction occurred 440 million years ago at the end of the Ordovian period. 2. The second mass extinction occurred from the late Devonian to the early carbonatite period, about 377 million years ago. 3. The third time was at the end of the Permian period 251 million years ago. 4. The fourth mass extinction occurred in the early Triassan period. 5. The fifth mass extinction occurred at the end of the cretaceous period 65 million years ago. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What are the five mass extinction?
The five major extinction events in Earth's history were as follows: 1. The first mass extinction occurred in the Ordovian period (about 440 million years ago). At that time, life on Earth was dominated by marine life. During this period, marine species were extremely prosperous. In this extinction event, 85% of species were extinct, mainly because of global cooling. The arrival of the Great Ice Age caused a drastic change in temperature and a large area of seawater was frozen. 2. The second mass extinction occurred from the late Devonian to the early carbonatite period (about 365 million years ago), during which fish were the most abundant creatures. The extinction led to the extinction of nearly 65% of the creatures, with the extinction rate of marine creatures being much higher than that of terrestrial creatures. The reason for the extinction was that the "super mantle plume" magma broke away from the earth's core, triggering a massive volcanic eruption. A large amount of high-temperature gas melted into the seawater, causing the seawater to boil and decompose. The toxic gas ejected from the magma also caused drastic changes in the environment such as acid rain. 3. The third was at the end of the Permian period 250 million years ago. This was the most serious of the five mass extinction, with more than 96% of marine life and 70% of land life extinct. The main reason was geological activity. The super volcanic eruption lasted for more than 8 million years, and the surface of the earth became a purgatory. 4. The fourth mass extinction occurred at the end of the Triassan Period (about 200 million years ago), and more than 76% of species were extinct. The main character of this mass extinction was the volcanic eruption. After the volcanic eruption, lava was everywhere, volcanic ash covered the sky, plants could not photosynthesize, the producers of the food chain disappeared, and all kinds of creatures lost their food sources, leading to the extinction of creatures. 5. The fifth mass extinction occurred at the end of the cretaceous period 65 million years ago, also known as the dinosaur extinction. The protagonist of this extinction event was a volcanic eruption, and the cause of the volcanic eruption was an asteroid hitting the Earth. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What kind of mass extinction has happened on Earth?
There have been five major mass extinction events in Earth's history: 1. The mass extinction at the end of the Ordovian period, about 445 million years ago, was the earliest of the five major extinction events and ranked second in the severity of the five major extinction events. This extinction event mainly affected marine life, causing about 85% of the world's marine species to disappear. The extinction event was closely related to global climate change. It might be the arrival of the global ice age. Gondwana was located in the Antarctic. The formation of large-scale ice sheets caused the global sea level to drop significantly, the shallow sea creatures lost their habitat, and the ocean circulation pattern changed. The event was divided into two phases. The first phase was related to global cooling, and the second phase was related to rapid warming. This violent climate fluctuation exceeded the adaptability of most marine organisms. 2. The late Devonian extinction, about 375 million years ago, caused about 75% of the world's species to disappear. The event occurred shortly after the first large-scale landing of organisms and had a profound impact on both marine and terrestrial eco-systems. Its most prominent feature was the collapse of reef-building organisms. The Devonian coral reef ecosystem was destroyed, and there were almost no large reefs formed for millions of years, which had a catastrophic impact on the marine ecosystem. There was also evidence from the Earth's chemistry that it was closely related to the global oceanic anoxia event. Black shales rich in organic matter in Devonian formations around the world indicated the oceanic anoxia environment, which led to the large-scale death of marine life and changed the global carbon cycle. In terms of the terrestrial ecosystem, it was consistent with the major changes in the early forest ecosystem. At the end of the Devonian period, many primitive vegetative plants disappeared and were replaced by gymnosperm, changing the appearance of terrestrial vegetation, atmospheric composition, and climate. 3. The end-Permian extinction, about 252 million years ago, was the most serious of the five mass extinction, causing 98% of marine life and 96% of land life to suddenly disappear within 500,000 years. 4. The fourth mass extinction occurred in the early Triassan period. 5. The fifth mass extinction occurred at the end of the cretaceous period, 65 million years ago. The most famous one was the permanent disappearance of dinosaurs. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The Sixth Mass Extinction
The result of the first mass extinction
The first mass extinction event (Ordovician-Silurian extinction event) caused 27% of the world's families and 57% of the species to go extinct, and nearly 85% of the species went extinct. Large amounts of land gathered near the poles, icebergs piled up, sea levels fell, and the originally rich coastal biosphere was destroyed. Earth only regained its vitality after hundreds of thousands of years. After that, the earth recovered, and all kinds of creatures evolved again. The marine animals developed by leaps and bounds. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
A novel as good as Extinction of the Earth
There were novels similar to " Extinction of the Earth " Book of Troubled Times, Author: Ji Cha 2:" Spiritual Realm Walker ", Author: Xiao Langjun 3: The Tang's Table, Author: Jie and 2 4." King of Familiars ", Author: Light Spring Flowing Sound Fairy, Please Listen to My Explanation, Author: Mi Tian Building National Forensic Medicine, Author: Zhiniao Village 7:" Wait, Heroine." Author: Guan Guan Gongzi 8: Mantang Colorful, Author: Weird Cousin 9:" Hidden Dead Corner ", Author: Get Lost Final Divine Duty, Author: Tuoba Goudan Beyond Time, Author: Er Gen This Game Is Too Real by Chen Xing LL Red Heart Sky Patrol, Author: What's the Matter? Ring of Destiny, Author: Squid Who Loves to Dive National Master of Ming Dynasty, Author: West Lake Encountered Rain Choose a Day to Ascend, Author: Otaku Pig 17:" Who's in Love After Rebirth?" Author: What's Wrong? Deep Sea Ember, Author: Yuantong Chapter 19: Cultivation in the Chaotic World of Demonic Martial Arts, Author: Wenplagiarism 20:" Who told him to cultivate!" Author: The Whitest Crow The following is a detailed introduction of these novels: 1." Book of Troubled Times ": Holding a sword, drinking in Jianghu, slender waist and light palm. The young man carried a long saber on his shoulder and hung wine on his waist. He strode forward, but the Jianghu in his heart was vaguely difficult to see. Turning a page in the book of troubled times, it would rain for decades in the Jianghu. Suddenly looking back, the world has been split into pieces. 2." Spirit Realm Walker ": A new novel from the newspaper seller. Congratulations on creating a record of 200,000 collections on the first day. The introduction and the first few chapters feel pretty good. Fattening up. 3." The Tang's Table ":" The Tang's Table " is an unforgettable historical novel. With the dining table of the Tang Dynasty as the background, the author portrayed the political, cultural, and social changes of the Tang Dynasty through various dishes. The plot was compact and fascinating, making one feel as if they were in that era. The author's writing was exquisite, making people feel as if they could smell the fragrance of food and feel the prosperity and vitality of the Great Tang. This book was not only a historical novel, but also a feast of history and culture. It allowed people to appreciate the charm of the Great Tang and feel the aura of that era through reading. I strongly recommend The Tang's Table. I believe that everyone who has read this book will be attracted by its charm. 4." King of Familiars ": The theme of this book should belong to a relatively active genre a few years ago. It's not too old now, but the theme is indeed not new. However, the background and structure of the book were a little new. The content was not bad either. It was not the kind of face-slapping novel. 5." Fairy, Please Listen to My Explanation ": The fake villain is waiting to be slapped in the face, but the real villain is carried around by a big block of ice as soon as he comes up. Goldfinger? Only fake villains relied on their golden fingers to make a fortune. Real villains dared to face their bleak lives! " The heavens didn't give birth to me, Xu Changtian. The villain's eternal life is like a long night." National Forensics: [licorice][forensic text]🌙 Waterbird's new book, the urban system's occupation book. The second generation of demolition had just graduated from university and became a forensic doctor. He had obtained the system and could obtain skills by completing system missions. You could say that Waterbird's book was weak. The supporting characters in the book were not very intelligent, and the main character was an emotionless tool. However, you could not deny that it was really cool. The author was good at writing professional and technical articles. Many times, the details were so good that it felt like the real thing. Waterbird was a steel tycoon, a genius, and a doctor. It could be seen that the author had looked up relevant information and related papers for the sake of writing the book. Sometimes, even the author could use professional information or encyclopedia to make up for it. Of course, this didn't change the fact that it was a waterbird. It was a walk-on in many books, with various forms of spider plants at the beginning of each chapter, and tasting various delicacies from various places every few chapters... Setting:7 Plot:7 Writing Style:7 Others:7 7." Wait, Heroine ":" Wait, Heroine " was a book with a strong sense of martial arts. The settings were very orthodox. The plot was compact and fascinating, leaving a deep impression on everyone. The author's imagination was also very big, and it made people's eyes light up. The characters were distinct, especially the setting of the female lead. The author's writing style was excellent, and the battle scenes were also very exciting. This book was a low-level martial arts book. It had the style of an ancient dragon, and the fighting scenes were very exciting. In terms of emotional scenes, the author handled them very well. There were no toxic or negative points, and it was very easy and enjoyable to read. Even though the image of the female lead was somewhat similar, overall, the author's writing level was very high. He had successfully pushed " The Prince is Fierce " to another level. The book was already fat, and the readers could read it without worry. Overall, this book was highly recommended. 8." Mantang Colorful Scenery ": History, officialdom He had crossed the Great Tang and sought self-protection in the dangerous officialdom, constantly working hard to strengthen himself. In order to protect himself, the protagonist also had the goal of preventing the An Lushan Rebellion from happening… 9:" Hidden Dead Corner ": Get Lost New Book Fast forward to why you forced me. 10:" The Final Divine Order ": The Plot of a Missing Person Saving a Beauty Is Poisonous 11:" Beyond Time ": I haven't seen the alliance yet, let's raise it " This Game Is Too Real ": I accidentally flipped to this and spent the whole night in it… What the hell am I doing? Now, she felt like her entire body was floating and not revealing anything. It was quite worth watching. Even if he wanted to keep it, he should at least give it to someone else as a collection.'I'm in the Doomsday Suite'. Of course, because the times were different, this book was better written. Moreover, the author was also a serious scholar, so he could eat it without worry. This was a science fiction novel. " Red Heart Sky Patrol ":" Red Heart Sky Patrol " is an amazing novel. Every volume is closely connected. Every character that appears plays an important role in the plot. Every twist is rigorous and well-founded. The author's talent lay in laying down and undoing foreshadowing, as well as the description of each character's personality. This book was not without brains. The plot was rigorous, there were many twists, and the characters had distinct personalities. It was definitely a divine work. I accidentally flipped through this book and felt something when I started reading it. This book was definitely not cliché. The author's writing was excellent, and the world he constructed was also very grand. Jiang Wang's image as a genius youth was also very attractive. His unyielding determination and his determination to patrol the sky with his Red Heart left a deep impression on people. This book is definitely an excellent Xianxia novel. I strongly recommend it to everyone! Ring of Destiny was a long-awaited new squid book. It was the continuation of the Lord of the Mysteries. The first book was written very well, making people look forward to this new book. The story was set in a mysterious world, which made people feel excited and filled with endless fantasies. The author used his passionate and passionate strokes to describe the story of a young man's unyielding struggle, making people feel infinite passion and strength. I'm looking forward to the release of this new book. I believe it will be even more exciting. After witnessing the end of the Battle of Jingnan, Jiang Xinghuo, who was the target of the Ten Clans Execution, finally heaved a sigh of relief. As a veteran transmigrator, he could return to the modern world for eternal life after transmigrating for nine lifetimes. Jiang Xinghuo, who felt that he was about to succeed, was so bored that he began to teach in prison, but it seemed that something was wrong... Ma Sanbao: What is the Great Voyage Era in On Sea Power? [Yao Guangxiao: On the Fate of a Nation is actually the legendary dragon-slaying technique!] Zhu Gaochi: I haven't finished talking about the silver standard in the History of Chinese Money. Jiang Xing Huo: " I'm going to be beheaded tomorrow. I'll tell you the rest of the lesson in your dreams." At this moment, the walls of the Imperial Jail collapsed and a voice sounded. "Mr. Jiang, I am Zhu Di. Please be the state preceptor!" " Ascending on an Ascending Day ":" Ascending on an Ascending Day " was a classical Xianxia novel. It brought a brand new reading experience to the readers by fantasizing about the plot of immortal cultivation and a new cultivation system. The realm setting of this book was very unique, making people full of expectations and challenges when reading. The setting of the Enigma of Longevity was a test of the readers 'thinking ability, allowing them to understand the true meaning of immortal cultivation more deeply in the process of thinking. This book is suitable for readers who like the style of Xianxia and chivalrous, but also suitable for readers who like to read books with depth and content. In the book, the author described a scene of incense burning everywhere in the Great Land of China, which made people feel the fantasy and mystery of the Xianxia world. This novel was fascinating at the beginning. Through the setting of the villain and some light-hearted and humorous language, the readers felt the joy and humor of the Xianxia world. The personalities of the villains in Pig's hands were also impressive. They gave people a different feeling. In short," Ascending on a Better Day " was a novel that people looked forward to. It was suitable for all readers who liked xianxia and fantasized about immortal cultivation. Whether it was a book reader with a wide range of tastes or a reader who liked Xianxia novels, this book should not be missed. I hope this book can bring more surprises and emotions to the readers. 17:" Who's Going to Fall in Love After Being Reborn ": The writing is not bad, the plot is exciting! I'd like to call it "I really didn't want to be a sea king after being reborn as a bootlicker." Description: Struggle until you can't afford a house at the age of thirty-eight. If you want to get married, you have to pay 300,000 yuan as a betrothal gift. You have to live frugally for most of your life. Who earned the money? Jiang Qin, who had been reborn at the age of 18 with countless grievances, opened his eyes and the only thought was to start a business and make money. The first step was to snatch back the love letter, turn it over, and write three lines under the school belle's shocked eyes: No matter what, he couldn't work. If he could get rich, he would get rich. Money can be earned again, but conscience can be earned even more! The livestock of the society will never be slaves! As for love? Even dogs wouldn't talk about that! On that day, the thick fog sealed everything. On that day, he became the captain of a ghost ship. On that day, he crossed the thick fog and faced a world that had been completely overturned and shattered. The order of the past was gone, and strange visions dominated the endless sea beyond civilization. The isolated island cities and the fleets that challenged the sea had become the only lights of the civilized world, while the shadows of the past were still stirring in the deep sea, waiting to continue to devour the dying world. However, for the new captain of the Lost Home, there was only one problem he had to consider first. Who knew how to sail the boat? 19." Gou in the Demonic Martial World to Cultivate Immortals ": A new copy of the text. Quality guaranteed-IQ online, cool, smooth, and updated. This was originally a cultivation method. In the cultivation world, I was submissive, but in the demon martial world, I attacked with heavy fists. Using the difference in information and resources between the two worlds, they could be Master Dao and Sixth Brother. "Who told him to cultivate!" " I've repeatedly stressed that the atmosphere in the cultivation world is crooked, and I'm not the one who led it astray. It's said that history books are written by the victors. Then why are there always people framing me when I win?" Sword Immortal Lu Yang said this to the reporters, expressing his anger. The next day. "I have repeatedly stressed that I am the one who led the cultivation world astray." Sword Immortal Lu Yang said this in an interview, expressing his anger. 'Daily Cultivation' reporting for you. You can read these novels on Qidian Chinese Network.
Is there a novel similar to "The Rebirth of the Extinction of the Earth"
What are the possible reasons in a ghost extinction story?
One reason could be the presence of a powerful spiritual figure like an angel or a very strong wizard. Their positive energy and magic can overpower the negative energy that sustains a ghost. For example, if a wizard casts a spell of purification, it can break the bond that holds the ghost to the physical world.
Which were the two most serious mass extinction cases?
The most serious of the five mass extinction events in Earth's history was the mass extinction at the end of the Permian period 251 million years ago, causing 98% of marine life and 96% of land life to suddenly disappear within 500,000 years. The second most serious of the five mass extinction events was the mass extinction at the end of the Ordovian period 440 million years ago, causing about 85% of species to go extinct. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>