How could an asteroid hitting the Yucatan peninsula in what is now Central America cause a worldwide mass extinction?

Question

Quizplus · Accepted Answer

When the asteroid hit the Yucatan peninsula, it caused a massive explosion throwing debris into the atmosphere. The debris blocked the sunlight and inhibited photosynthesis, the process by which plants produce oxygen. The lack of photosynthesis led to a reduction in oxygen levels in the atmosphere, which ultimately caused the extinction of many species worldwide, including the dinosaurs. The impact also caused massive wildfires, earthquakes, and tsunamis that further contributed to the extinction event.

How Could an Asteroid Hitting the Yucatan Peninsula in What