[Solved] How old is the Precambrian Crust? A) 0-500 million years B) 500 million-1 billion years C) 500 million-1.5 billion years D) 1 billion-4 billion years Plateau: A phase in which progress in physical or intellectual skills seems to halt temporarily after a period of rapid improvement. Premature Ejaculation: A sexual disorder in males characterized by ejaculation that occurs sooner than desired, either before or shortly after sexual penetration. Erotic Plasticity: The degree to which an individual's sex drive can be changed by societal, situational, and cultural influences. Erectile Disorder: A recurring difficulty in achieving or maintaining an erection sufficient for satisfactory sexual performance.