O. Henry uses dialogue in "A Call Loan" to reveal the characters' personalities and motivations. For example, the dialogue between Mr. Peters and the banker shows Mr. Peters' desperation and the banker's cold indifference. The back-and-forth conversation also creates tension and moves the story forward in a dynamic way.
Because there is a large body of evidence to support it.
I do not so much " believe it " as I an convinced by the myriad lines of converging evidences that support the theory of evolution by natural selection. talkorigins.org
Scientists did not prove things then anymore than they prove things now. Evidence, masses of converging evidence support the theory of evolution by natural selection. Darwin, in his day, had much evidence to support his theory. All the way from artificial selection to island biogeography. Since that time the theory has moved on to where it is no longer just Darwin's theory, but modified and supported with so much evidence that the theory became the bedrock of biology. Go here. talkorigins.org
Genetic variation in itself does not 'support' natural selection: it is what natural selection acts upon.
Corroborate means to strengthen or support with evidence.
use scientific evidence to support your answer
The branches of genetics, paleontology, observed natural selection and speciation all support evolution. Examples: (Genetics) Human chromosome 2 resulted from a fusion of two ancestral chromosomes. (Paleontology) Evolution of the horse. (Natural selection) Observed in Peppered moths. (Speciation) The Hawthorn Fly
Is the evidence from the best source I can find
Textual evidence that can be used to support ideas about a story's theme includes direct quotes from the text that reflect recurring motifs or symbols, character dialogue that emphasizes the central message, and specific events that illustrate the thematic development. Analyzing how these textual elements contribute to the overall meaning of the story helps to strengthen arguments about its theme.
Does this evidence support what I am trying to say
support
Fossils support his hypothesis.