Anybody know how to do this?

How do the energy differences between the higher energy levels of an atom compare with the energy difference between the lower energy level of the atom

There is a single path for electrons. the current decreases when additional resistors are added. the current will be the same in each resistor. these statements best describe a(n) circuit.

As you watch a surfer ride a wave towards the shoreline, what is the shoreline? a) displacement reference b) reference point c) coordinate plane d) cartesian boundary