A. is right because the waves are at the top and as u get deper of course the energy will decrease
It pulls you towards the ground therefore when we jump, or if you drop soemthing, it goes straight back down
D. Gravity is a dent in the fabric of space and time.
or
B. Radium is a radioactive element.
What elem eat is this? That has three orbitals? Usually the first orbital will contain only two electrons. The second orbital would contain four, the third would contain 16
