Cretaceous Mass Extinction Quiz

What was the primary event that led to the mass extinction at the end of the Cretaceous period?

• Volcanic eruptions

• Asteroid impact

• Climate change

• Sea level rise

Which evidence supports the asteroid impact hypothesis for the Cretaceous extinction?

• Fossilized dinosaur remains

• Presence of iridium layer

• Increased volcanic activity

• Rise in sea levels

What was one of the immediate effects of the asteroid impact on Earth's environment?

• Global warming

• Rise in sea levels

• Prolonged darkness

• Increased oxygen levels

How did the 'boil' event affect terrestrial organisms?

• Protection from predators

• Extreme heat exposure

• Rise in sea levels

• Increased food supply

What caused the 'impact winter' following the asteroid collision?

• Volcanic eruptions

• Dust and aerosols blocking sunlight

• Rise in sea levels

• Increased oxygen levels

What was a long-term environmental effect of the asteroid impact?

• Increased volcanic activity

• Global cooling

• Acid rain

• Rise in sea levels

What geological feature formed as a result of the impact's acid rain?

• Canyons

• Volcanoes

• Mountains

• Sinkholes

What role did Deccan volcanism play in the Cretaceous extinction?

• Contributed to species decline

• Caused global warming

• Primary cause of extinction

• No role at all

Which group of organisms flourished after the extinction event?

• Mammals

• Dinosaurs

• Amphibians

• Reptiles

What modern threat is compared to the asteroid impact in the video?

• Climate change

• Nuclear war

• Deforestation

• Overfishing