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How old is the earth?
It is believed that the earth is approximately 4.5 billion years old.
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How old is the universe?
From analysis of data collected by the Hubble telescope the age of the universe is estimated to be about 12 billion years.
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When did life appear on earth?
is estimated that life on earth emerged about 3.5 billion years ago, thus 1 billion years after the formation of the planet.
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What is the problem that the theory of evolution and its rival theories try to solve?
The problem that the theory of evolution, or simply evolution, and its rival theories try to solve is to explain how the different living beings that live on earth have appeared.
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What is the main theory opposed to evolution?
The main theory that opposes the evolution theory on the explanation of how species emerged (phylogenesis) is fixism.
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Card 2

Front

How old is the universe?

Back

From analysis of data collected by the Hubble telescope the age of the universe is estimated to be about 12 billion years.

Card 3

Front

When did life appear on earth?

Back

Preview of the front of card 3

Card 4

Front

What is the problem that the theory of evolution and its rival theories try to solve?

Back

Preview of the front of card 4

Card 5

Front

What is the main theory opposed to evolution?

Back

Preview of the front of card 5

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