Trivia: What caused mammals to be the most successful animals on Earth? Image:
K-T Extinction
Hyperactive volcanoes
Precambrian explosion
Snowball Earth
The correct answer is K-T Extinction
So why is this answer correct? : Around 65 million years ago, an apocalyptic, asteroid-induced extinction event known as the K-T Extinction wiped out 75% of all living species, including the dinosaurs. Although it’s the most well-known extinction event, the K-T Extinction is actually the fifth large-scale extinction in Earth’s history.