How many planets support life?
Unknown
The number of planets that support life is unknown.
First of all, the number of planets in the universe is a mystery to us.
Secondly, because we are unable to reach them, we are unable to determine which planets are home to life.
Astronomers have discovered planets that might be able to sustain life, but as of yet, there is no way for us to confirm this.
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As of current scientific knowledge, only one planet supports life: Earth.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
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