Answer:
I have roots nobody sees. I am taller than trees. Up up I go but I never grow.
I save lives on the ground and in the air
The faster you run, the harder it is to catch me. What am I?
I am flora, not fauna. I am foliage, not trees. I am shrubbery, not grass. What am I?
I am higher than the king
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic