Answer:
I am the minerals vital for your good health.
I am higher than the king
A piece of paper that takes most people 3 or 4 years to get.
A trail, a union, together tied. Come across me and you will find you cannot change the course I'm on. Without me you cannot travel on. What am I?
I keep things green and keep kids happy during summer time.
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?