Why are cell walls so important for plant cells A. they prevent the cell from bursting
B. they control the cells activities
C. they provide water to the cells

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