Answer :
A new worker increases human capital by bringing fresh skills and experience that can be shared with and enhance the abilities of existing employees, thereby enriching the overall workforce of the company.
Hiring an additional worker could lead to an increase in human capital if the new employee brings with them unique skills and experience that are not only beneficial for the tasks at hand but can also be shared and transferred to other employees. This process of sharing knowledge and expertise can enhance the overall pool of skills within the firm, thus increasing the value of its workforce, which is essentially the definition of human capital.
By improving the capabilities of other workers through training or collaboration, the new worker contributes to the growth of the company's human capital, which in turn can increase productivity and potentially even the innovation capacities of the organization.