EVOLUTION
THE ORIGIN OF LIFE
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[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Detailed explanation-1: -Cretaceous Period-66 million years ago. Triassic Period-201 million years ago. Permian Period-252 million years ago. Devonian Period-359 million years ago.
Detailed explanation-2: -66 million years ago, a large asteroid crashed into Earth – causing the fifth mass extinction event and giving rise to the Age of Mammals.
Detailed explanation-3: -What causes mass extinctions? Past mass extinctions were caused by extreme temperature changes, rising or falling sea levels and catastrophic, one-off events like a huge volcano erupting or an asteroid hitting Earth. We know about them because we can see how life has changed in the fossil record.
Detailed explanation-4: -The planet has experienced five previous mass extinction events, the last one occurring 65.5 million years ago which wiped out the dinosaurs from existence. Experts now believe we’re in the midst of a sixth mass extinction.