Critical to the theory of evolution, Darwin needed to include an idea that was not generally accepted by scientists or society at that time. that idea was that: the earth must be old.
What is Darwin's theory of evolution?
This is the theory that tells us of how the generations of organisms evolve over time. The theory tells us that there is a descent with modification. This means that the generations of organisms that came would be different from the parent organisms that used to exist.
In Darwin's theory, there was a lot of doubts and critics because his theory was rejected by a lot of other scientists.
Read more on evolution here: https://brainly.com/question/12271572
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