giải nhanh It is estimated that over 99 percent of all species that have ever existed on Earth are now extinct. [I] Extinction od,hen a species can no longer survive in a changing environment. [II] Causes vary but often include climate shifts,,hortages, and competition from better-adapted species. (III) Natural disasters such as volcanic eruptions, earthquakes,,asteroid impacts have also played a role in extinctions. (IV) In other words, when sudden changes make an environm,uninhabitable, species may perish.,The fossil record shows that extinction has always been a part of Earth's history. However, scientists have discover,that, at certain times, large numbers of species have disappeared simultaneously in events called mass extinctions. One of a,most famous occurred 65 million years ago, leading to the extinction of dinosaurs and many other life forms. Scientists believ,this was caused by an asteroid impact that triggered fires, dust clouds blocking sunlight, and drastic climate changes. Anothe,major mass extinction happened around 225 million years ago, wiping out nearly 95 percent of all species. Mass extinction,can be worsened by the interdependence of species---when one disappears, others that rely on it may also struggle, leading to,further extinctions.,An interesting observation is that extinctions over the past 250 million years seem to follow a cycle, occurring roughly,every 26 million years. Some scientists suggest this pattern is linked to Earth's orbit periodically intersecting with a cloudo,comets, leading to impacts that cause extinction. However, this theory is speculative, as no solid evidence supports it. Other,researchers propose that extinction is sometimes random, meaning species may survive or vanish by chance rather than their,ability to adapt. This suggests that parts of evolutionary history may be shaped by unpredictable events.,While extinction is natural, human activities such as deforestation, pollution, and climate change have accelerated,species loss. Unlike past extinctions caused by natural forces, the current biodiversity crisis is largely due to human actions,Scientists warn that without stronger conservation efforts, another mass extinction could occur, leading to irreversible,ecosystem damage and the loss of countless species essential for ecological balance.,Question 1. Where in paragraph I does the following sentence best fit?,"Some species fail to adjust and eventually disappear.",A. [I] B. [II] C. [III] D. [IV],Question 2. The word "perish" in paragraph 1 could be best replaced by _____.,A. develop B. adapt C. vanish D. multiply,Question 3. According to paragraph 1, which of the following is NOT a cause of extinction?,A. natural catastrophes B. food insufficiency C. ability to adapt D. climatic variations,Question 4. The word "One" in paragraph 2 refers to _____.,A. fossil record B. mass extinction C. extinct species D. asteroid impact,Question 5. Which of the following best summarizes paragraph 2?,A. Extinction is a natural process, but mass extinctions have wiped out many species at once.,B. Dinosaurs were the only species to go extinct due to an asteroid impact 65 million years ago.,C. Mass extinctions throughout history have always been caused by climate change alone.,D. The most recent mass extinction event nearly wiped out all existing species on Earth.,Question 6. The word "worsened" in paragraph 2 is OPPOSITE in meaning to _____.,A. intensified B. increased C. improved D. strengthened,Question 7. Which of the following best paraphrases the sentence "This suggests that parts of evolutionary history may be,shaped by unpredictable events." in paragraph 3?,A. Evolutionary history always follows a determined and predictable pattern.,B. Some aspects of evolution might have been influenced by random occurrences.,C. Scientists fully understand all factors that have shaped evolutionary history.,D. Evolution is entirely based on natural selection and survival of the fittest species.,Question 8. Which of the following is NOT TRUE according to the passage?,A. Some scientists believe that mass extinctions occur in cycles.,B. The extinction of one species can lead to the extinction of others.,C. Human activities are currently contributing to species loss.,D. The last mass extinction event occurred 26 million years ago.,Question 9. Which of the following can be inferred from the passage?,A. Human-caused extinction rates are faster than natural extinctions in the past.,B. All mass extinctions in Earth's history have been caused by asteroid impacts.,C. Species that are unable to adapt to environmental changes will always survive.,D. Earth has completely stopped experiencing extinction events in recent history.,Question 10. Which of the following best summarizes the passage?,A. Extinction is a natural process, but humans have significantly increased species loss.,B. Dinosaurs were not the only species to go extinct in a mass extinction event.,C. Evolution helps species adapt but does not prevent all from going extinct.,D. Mass extinctions are rare events that occur approximately every 100 million years.

Question

giải nhanh It is estimated that over 99 percent of all species that have ever existed on Earth are now extinct. [I] Extinction od,hen a species can no longer survive in a changing environment. [II] Causes vary but often include climate shifts,,hortages, and competition from better-adapted species. (III) Natural disasters such as volcanic eruptions, earthquakes,,asteroid impacts have also played a role in extinctions. (IV) In other words, when sudden changes make an environm,uninhabitable, species may perish.,The fossil record shows that extinction has always been a part of Earth&#x27;s history. However, scientists have discover,that, at certain times, large numbers of species have disappeared simultaneously in events called mass extinctions. One of a,most famous occurred 65 million years ago, leading to the extinction of dinosaurs and many other life forms. Scientists believ,this was caused by an asteroid impact that triggered fires, dust clouds blocking sunlight, and drastic climate changes. Anothe,major mass extinction happened around 225 million years ago, wiping out nearly 95 percent of all species. Mass extinction,can be worsened by the interdependence of species---when one disappears, others that rely on it may also struggle, leading to,further extinctions.,An interesting observation is that extinctions over the past 250 million years seem to follow a cycle, occurring roughly,every 26 million years. Some scientists suggest this pattern is linked to Earth&#x27;s orbit periodically intersecting with a cloudo,comets, leading to impacts that cause extinction. However, this theory is speculative, as no solid evidence supports it. Other,researchers propose that extinction is sometimes random, meaning species may survive or vanish by chance rather than their,ability to adapt. This suggests that parts of evolutionary history may be shaped by unpredictable events.,While extinction is natural, human activities such as deforestation, pollution, and climate change have accelerated,species loss. Unlike past extinctions caused by natural forces, the current biodiversity crisis is largely due to human actions,Scientists warn that without stronger conservation efforts, another mass extinction could occur, leading to irreversible,ecosystem damage and the loss of countless species essential for ecological balance.,Question 1. Where in paragraph I does the following sentence best fit?,"Some species fail to adjust and eventually disappear.",A. [I] B. [II] C. [III] D. [IV],Question 2. The word "perish" in paragraph 1 could be best replaced by _____.,A. develop B. adapt C. vanish D. multiply,Question 3. According to paragraph 1, which of the following is NOT a cause of extinction?,A. natural catastrophes B. food insufficiency C. ability to adapt D. climatic variations,Question 4. The word "One" in paragraph 2 refers to _____.,A. fossil record B. mass extinction C. extinct species D. asteroid impact,Question 5. Which of the following best summarizes paragraph 2?,A. Extinction is a natural process, but mass extinctions have wiped out many species at once.,B. Dinosaurs were the only species to go extinct due to an asteroid impact 65 million years ago.,C. Mass extinctions throughout history have always been caused by climate change alone.,D. The most recent mass extinction event nearly wiped out all existing species on Earth.,Question 6. The word "worsened" in paragraph 2 is OPPOSITE in meaning to _____.,A. intensified B. increased C. improved D. strengthened,Question 7. Which of the following best paraphrases the sentence "This suggests that parts of evolutionary history may be,shaped by unpredictable events." in paragraph 3?,A. Evolutionary history always follows a determined and predictable pattern.,B. Some aspects of evolution might have been influenced by random occurrences.,C. Scientists fully understand all factors that have shaped evolutionary history.,D. Evolution is entirely based on natural selection and survival of the fittest species.,Question 8. Which of the following is NOT TRUE according to the passage?,A. Some scientists believe that mass extinctions occur in cycles.,B. The extinction of one species can lead to the extinction of others.,C. Human activities are currently contributing to species loss.,D. The last mass extinction event occurred 26 million years ago.,Question 9. Which of the following can be inferred from the passage?,A. Human-caused extinction rates are faster than natural extinctions in the past.,B. All mass extinctions in Earth&#x27;s history have been caused by asteroid impacts.,C. Species that are unable to adapt to environmental changes will always survive.,D. Earth has completely stopped experiencing extinction events in recent history.,Question 10. Which of the following best summarizes the passage?,A. Extinction is a natural process, but humans have significantly increased species loss.,B. Dinosaurs were not the only species to go extinct in a mass extinction event.,C. Evolution helps species adapt but does not prevent all from going extinct.,D. Mass extinctions are rare events that occur approximately every 100 million years.

Timi · Accepted Answer

I&#x27;d be happy to help you with these questions.

1. A. [I]
2. C. vanish
3. C. ability to adapt
4. D. asteroid impact
5. A. Extinction is a natural process, but mass extinctions have wiped out many species at once.
6. C. improved
7. B. Some aspects of evolution might have been influenced by random occurrences.
8. D. The last mass extinction event occurred 26 million years ago.
9. A. Human-caused extinction rates are faster than natural extinctions in the past.
10. A. Extinction is a natural process, but humans have significantly increased species loss.