Primary dimensions of diversity are the inherent traits or characteristics that individuals possess and have no control over, such as age, race, gender, and ethnicity. These dimensions are fixed and cannot be changed. On the other hand, secondary dimensions of diversity are the aspects that individuals have more control over, such as education, marital status, religion, and income. Therefore, the ability to change lies with the secondary dimensions of diversity, as individuals have the power to make choices and decisions that can influence these aspects of their lives.