Effusion is the escape of gas molecules through a very small hole in a membrane into an evacuated area; diffusion is the spreading of molecules of a substance throughout a space or second substance.
Answer:
area where it's Summertime and tropical areas
Explanation:
1) Everything is made up of atoms. 2)Atoms are indivisible and also undestroyable. 3) The combination of 2+ different kinds of atoms creates compounds 4) A chemical reaction happens when atoms are rearranged/moved around.