An exothermic process is one that gives off heat.
Explanation:
This heat is transferred to the surroundings. An endothermic process is one in which heat has to be supplied to the system from the surroundings.
Pretty sure it's D. El Nino but not positive.
Answer:
atom is the answer I think
Answer:
Neils Bohr determined that electrons inhabit distinct energy levels.
Explanation:
