What are the two main types of evidence used to support the theory of evolution?

The two main types of evidence used to support the theory of evolution are fossil records and genetic evidence. Fossil records provide concrete, chronological evidence of how life on Earth has changed over time. They document the existence of different species and demonstrate transitional forms that illustrate evolutionary changes.

Genetic evidence complements this by showing the molecular basis of evolutionary relationships. By comparing DNA sequences among different organisms, scientists can infer how closely related they are and trace back their evolutionary lineages. This genetic comparison can reveal shared ancestry and divergence, aligning with the patterns observed in the fossil record.

Together, these two types of evidence create a robust framework for understanding evolutionary processes, illustrating both the historical and biological aspects of evolution. The other options, while relevant to various scientific studies, do not encapsulate the primary forms of evidence that specifically underpin the theory of evolution.