Compared to historical trends, what is different about contemporary climate change?

A. It’s occurring faster
B. It’s a warning trend
C. It’s affecting plants and animals
D. it’s caused by atmospheric changes

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