Final answer:
The combined events of the Deccan Traps and the Chicxulub impact led to the mass extinction of dinosaurs and many other species. The Deccan Traps were massive volcanic eruptions in India, while the Chicxulub impact was a cataclysmic collision of a large asteroid in Mexico.
Step-by-step explanation:
The combined events of the Deccan Traps and the Chicxulub impact had significant effects on the Earth's climate and ecosystems, leading to the mass extinction of dinosaurs and many other species. The Deccan Traps were a series of massive volcanic eruptions in what is now India, which released large amounts of volcanic gases, including sulfur dioxide. This contributed to climate change and may have played a role in the extinction event. The Chicxulub impact was a cataclysmic collision of a large asteroid in the Yucatán Peninsula, Mexico. This impact released an immense amount of energy, causing widespread destruction and triggering global climate changes.