Mass Extinction Event
Explore the causes, effects, and historical examples of mass extinction events on Earth.
Includes
Standards
Topics
Mass Extinction Event
Name:
Date:
Score:
Read each question carefully and answer to the best of your knowledge. Provide detailed explanations where requested.
1. Which of the following is NOT considered a major cause of mass extinction events?
Large-scale volcanic eruptions
Asteroid impacts
Gradual climate change over millions of years
Significant sea level fluctuations
2. The extinction event that wiped out the dinosaurs occurred at the end of which geological period?
Triassic
Jurassic
Cretaceous
Paleogene
1. The Permian-Triassic extinction event, also known as the Great Dying, resulted in the loss of about % of all marine species.
2. A period of rapid global warming or cooling can lead to a mass extinction because many species cannot quickly enough to the new conditions.
3. The K-Pg extinction event is primarily associated with a massive asteroid impact in what is now the Peninsula.
1. Describe two potential long-term effects of a mass extinction event on the surviving ecosystems.
1. The Earth has experienced only one mass extinction event in its history.
True
False
2. Mass extinctions often create opportunities for new species to evolve and diversify.
True
False
Match each extinction event with its primary characteristic.
1. End-Permian
a. Chicxulub impactor
2. End-Cretaceous (K-Pg)
b. Siberian Traps volcanism
3. Ordovician-Silurian
c. Glaciation and sea-level fall
The image above shows a dinosaur skeleton, a fossilized remnant of life from a bygone era.
1. Discuss the concept of the 'Sixth Mass Extinction'. What evidence suggests we are currently in one, and what human activities are contributing to it? What are the potential consequences for biodiversity and ecosystems?