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What happened when temperatures decreased during the ice ages of the Cenozoic Era?
using radiometric dating methods
Age of Mammals
absolute age
Age of Reptiles
4.6 billion years ago
New mammal species developed.
older
warm, shallow seas covering the continents.
Scientists have most accurately determined the absolute ages of rock layers by
using radiometric dating methods
Age of Mammals
absolute age
Age of Reptiles
4.6 billion years ago
New mammal species developed.
older
warm, shallow seas covering the continents.
When did the Earth begin forming?
using radiometric dating methods
Age of Mammals
absolute age
Age of Reptiles
4.6 billion years ago
New mammal species developed.
older
warm, shallow seas covering the continents.
The numeric or exact age of an object is called?
using radiometric dating methods
Age of Mammals
absolute age
Age of Reptiles
4.6 billion years ago
New mammal species developed.
older
warm, shallow seas covering the continents.
The Mesozoic Era is also known as the
using radiometric dating methods
Age of Mammals
absolute age
Age of Reptiles
4.6 billion years ago
New mammal species developed.
older
warm, shallow seas covering the continents.
What caused a variety of life-forms to appear in the Cambrian Period.
using radiometric dating methods
Age of Mammals
absolute age
Age of Reptiles
4.6 billion years ago
New mammal species developed.
older
warm, shallow seas covering the continents.
The rock sample that contains mostly the daughter isotope is...
using radiometric dating methods
Age of Mammals
absolute age
Age of Reptiles
4.6 billion years ago
New mammal species developed.
older
warm, shallow seas covering the continents.
The Cenozoic Era is known as the
using radiometric dating methods
Age of Mammals
absolute age
Age of Reptiles
4.6 billion years ago
New mammal species developed.
older
warm, shallow seas covering the continents.
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