The awareness that objects or people continue to exist when they are no longer in sight is called: a tertiary circular reaction. out of sight, out of mind. deferred object awareness. object permanence.

c. taught scientists many new things about the earth, but not other planets.

explanation:

nigger, that word was originated for white folks   to keep black people under

and when black people use it, they know that's just how they greet each other

and when white folks use it, they know there's a double meaning under