Mass Extinctions (Grade 10 NSC Matric Life Sciences): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What happens during a mass extinction event?
What happens during a mass extinction event?
Sharp decrease in plant & animal life
How many major mass extinction events have occurred in Earth's history?
How many major mass extinction events have occurred in Earth's history?
Five major events
Which extinction event was the most severe in Earth's history?
Which extinction event was the most severe in Earth's history?
Permian-Triassic extinction
How long did the Late Devonian extinction last?
How long did the Late Devonian extinction last?
20 million years
What significant change occurred after the Cretaceous-Paleogene extinction 65 million years ago?
What significant change occurred after the Cretaceous-Paleogene extinction 65 million years ago?
Mammals & birds became dominant
What is the estimated current extinction rate per year?
What is the estimated current extinction rate per year?
140,000 species per year
What makes the sixth mass extinction unique compared to previous extinctions?
What makes the sixth mass extinction unique compared to previous extinctions?
Driven by human activities
What must a valid scientific theory explain about mass extinctions?
What must a valid scientific theory explain about mass extinctions?
All losses & survival patterns
What evidence supports the impact theory for the Cretaceous extinction?
What evidence supports the impact theory for the Cretaceous extinction?
600-km crater in India
How do volcanic eruptions contribute to mass extinctions according to the theory?
How do volcanic eruptions contribute to mass extinctions according to the theory?
Through climate disruption