Water and food
Water.
Everything is the most important thing in math. You are going to need math when you are older or to help you with your job now.
oxygen
You need to check for the most important thing!
You need to have BALANCE. it is the most important thing.
For a Sikh the most important thing is Hair.a saying : a Sikh will cut his head id the need comes (i.e. die ) but will never cut his hair.
The most important thing for your to remember is that in a physical change the composition of a substance does not change and in a chemical change the composition of a substance does change.
critical thinking skills
Their most important thing to them was their gods and religion..
A friend, obivously. It is one the most important thing that you will need in the future. ^_*
Some form of nourishment.
The most important thing to sikh's is Guru Nanak.