Sick could mean disgusting, horrible, brutal, awesome, amazing, etc. However it's commonly used in everyday talk to say "that's cool"There are four main types of disease: infectious diseases, deficiency diseases, hereditary diseases (including both genetic diseases and non-genetic hereditary diseases), and physiological diseases. Diseases can also be classified in other ways, such as communicable versus non-communicable diseases.
It is not it something like sand because it would keep the fossil preserved.
I think it is the kamineni institute of medical sciences (KIMS)
Hope my answer would be helpful to you