What killed the dinosaurs?

The video explores theories on dinosaur extinction, focusing on whether a catastrophic asteroid impact or gradual volcanic activity led to their demise. It discusses the evidence supporting each theory, such as the presence of iridium in the Earth's crust and the effects of volcanic dust on climate. The impact on herbivorous and carnivorous dinosaurs due to climate change is also examined, highlighting the debate on whether the change was sudden or gradual.

What is one theory that explains the sudden extinction of dinosaurs?

• A massive asteroid impact

• Gradual climate change

• A global flood

• A new predator species

What rare metal found in Earth's crust supports the asteroid impact theory?

• Platinum

• Iridium

• Silver

• Gold

How does the volcanic eruption theory explain the extinction of dinosaurs?

• Volcanic eruptions released toxic gases that poisoned dinosaurs

• Volcanic eruptions created new landmasses that dinosaurs couldn't adapt to

• Volcanic eruptions caused a sudden drop in temperature

• Volcanic eruptions blocked sunlight over millions of years

What would have happened to herbivorous dinosaurs during the climate change?

• They would have become carnivorous

• They would have starved due to lack of plant growth

• They would have adapted to eat different plants

• They would have migrated to warmer areas

What is the main conclusion about the extinction of dinosaurs?

• Dinosaurs were hunted to extinction by early humans

• Climate change, whether sudden or gradual, likely led to their extinction

• Dinosaurs evolved into modern birds

• Dinosaurs were wiped out by a new disease