On the atomic level, energy and matter exhibit
the characteristics of
(1) particles, only
(2) waves, only
(3) neither particles nor waves
(4) both particles and waves

On the atomic level, energy and matter exhibit the characteristics of "(4) both particles and waves" which is one of the most important concepts in physics. 

This is what i found “in a gas turbine engine, the combustor or combustion chamber is fed high pressure air by the compression system. early gas turbine engines used a single chamber known as a can type combustor. today three main configurations exist: can, annular and cannular (also referred to as can-annular tubo-annular).” i hope this you for what your looking for. can you plz mark me brainliest?