Science What was the most significant event at the beginning of the Mesozoic?

mass extinction

creation of a supercontinent

“explosion” of many new life forms

break up of a super continent

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Hydrogen has only one electron in its only (and outer) electron shell. if a hydrogen atom were to absorb a small amount of energy, where would bohr say the electron would go? a. fly off the atom b. nowhere, it would just speed up. c. spiral inwards towards the nucleus d. move up to another shell that would form