Answer:
I'm sometimes white and always wrong. I can break a heart and hurt the strong. I can build love or tear it down. I can make a smile or bring a frown.
My second is performed by my first, and it is thought a thief by the marks of my whole might be caught.
It is destruction made out of thin air, You hear it howl and give a prayer, Through barns and houses it will tear. It is a deadly funnel, Of violent and twisting air.
Dies half its life. Lives the rest. Dances without music. Breathes without breath.
Looks like water, but it's heat. Sits on sand, lays on concrete. A play on the eyes, but it's all lies.
What covers its face with its hands, speaks no language, yet most known what it's saying?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?