Dinosaur Extinction and Earth's Transformation

66 million years ago, a massive asteroid struck Earth, causing catastrophic changes that led to the extinction of dinosaurs. The impact generated a megatsunami and released debris that blocked sunlight, leading to a nuclear winter. This event drastically altered Earth's climate and ecosystems, pushing many species to extinction. Over millions of years, Earth recovered, giving rise to the Age of Mammals. Today, we face environmental challenges, but efforts like those by Planet Wild aim to restore and protect our planet.

What was the approximate diameter of the asteroid that struck Earth 66 million years ago?

• 5 km

• 10 km

• 15 km

• 20 km

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

• Increase in oxygen levels

• Formation of new landmasses

• Cooling of the atmosphere

• Compression and heating of air

What natural disaster was triggered by the asteroid impact?

• Hurricane

• Earthquake

• Volcanic eruption

• Megatsunami

What was a significant consequence of the debris ejected into the atmosphere?

• Increase in plant growth

• Prolonged acid rain

• Rise in sea levels

• Formation of new species

What percentage of Earth's species went extinct due to the asteroid impact?

• 50%

• 60%

• 75%

• 90%

What was one of the long-term climatic effects following the asteroid impact?

• Desertification

• Increased rainfall

• Nuclear winter

• Global warming

Which group of animals began to thrive after the extinction of the dinosaurs?

• Reptiles

• Amphibians

• Insects

• Mammals

What type of plants were among the first to reappear after the asteroid impact?

• Conifers

• Ferns

• Flowering plants

• Grasses

What is the focus of the group Planet Wild?

• Space exploration

• Wildlife conservation

• Rewilding and ecosystem restoration

• Climate change research

What is one of the activities Planet Wild engages in to help the environment?

• Cleaning up deep sea waste

• Building new cities

• Mining for resources

• Developing new technology