Chemistry, 03.10.2019 03:00, antonio9768

Pls pls pls quick (explanation too)
major scientific theories include the cell theory, the big bang theory, and the theory of plate tectonics. how are scientific theories formed?

a. through a single scientific discovery in which a scientist learns something new b. through the formation of several related hypotheses
c. through meetings between scientists in which they discuss several possible answers to a scientific question
d. through extensive testing and the accumulation of several lines of evidence

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Pls pls pls quick (explanation too)
major scientific theories include the cell theory, the big...