What are the three theories that explain the extinction of the dinosaurs?

Answer 1

They three theories, which could have worked independently or in concert to remove the dinosaurs, are: * a large rock from space struck the earth and devastated the biosphere * a massive gamma ray burst devastated life on earth * wide-spread vulcanism devastated the biosphere

Answer 2

No one alive was there to witness their demise. With that being said, the answer depends on whether you believe creationism or evolution. Creationists believe that the few that remained after the flood, were hunted for their generous portions of meat. Also, the environment was radically changed and it was harder for them to breathe which shortened their natural lifespan. Evolutionists believe that either a meteor hit the earth which wiped out most life on the planet or the ice age brought about their demise.

Answer 3

"There is proof that an asteroid Over 9 miles wide stuck the earth on the tip of the Yucatan peninsula, in the Gulf of Mexico. Asteroids happen every now and then today, but a big one would be the size of a basket ball nowadays. A 9 mile long asteroid would change atmosphere all over the world. Massive forest fires would spread through countries, severe storms all over the world, poor air quality, ocean to ocean tidal waves, and probably the worst thing ever: It would eliminate ALL sunlight for longer than 6 months. This would surely kill 70% of all life forms. The only that would survive would be smaller animals hiding out through this destruction."

Might I also add, that the impact would have been 1 billion times more powerful than the Hiroshima atomic explosion. Anything within 50 miles would have been destroyed.

Answer 4

There are many theories... some are rather bizarre while others are quite logical. The main reason though, is that a meteorite Hit the earth causing, mass extinction. The animals would of been forced to adapt incredibly quickly in order to survive. Triceratops were among the last to die out.

Answer 5

The Chixulub asteroid in the Yucatan peninsular 65 million years ago.

The massive and continuous volcanic eruptions of the Decan Traps in India