Answer:
Who keeps the ocean clean?
I am all around, yet to me you are half blind. Sunlight makes me invisible and difficult to find. What am I?
I am heavy forward but backward I am not. What am I?
A move made popular by the King of Pop.
Soft and cuddly I'll pull on your heart. But take my last name and I'll tear you apart.
I am your mother's brother's only brother in law. Who am I?