Answer:
I am easy to see but no one likes looking at me. Without me there would be no you. I can make you complain or make you happy. But you almost always take me for-granted.
I am a box which holds keys but not locks. With the right combination, I may unlock your soul. What am I?
When I get closer my tail grows longer but when I go away my tail leads the way.
I am a protector. I sit on a bridge. One person can see right through me, while others wonder what I hide. What am I?
I can be found in water but never wet
It flows out of the soil, It burns you if it boils, And holds us in its coils, More valuable than gold, As black as it is old.