PREDISPOSING FACTORS. A predisposing factor is a condition or situation that may make a person more at risk or susceptible to disease. Some predisposing factors include heredity, age, gender, environment, and lifestyle. Heredity is a predisposing factor when a trait inherited from a parent puts an individual at risk for certain diseases.
PRISM is a clandestine surveillance program under which the United States National Security Agency (NSA) collects internet communications from at least nine major US internet companies. Since 2001 the United States government has increased its scope for such surveillance, and so this program was launched in 2007.
A prism is a clear, triangular device made up of plastic or glass (or any transparent material). When white light goes through a prism, the light bends due to the phenomenon called refraction. Refraction is the process of bending light as light goes from one medium (like air) to another medium (like water or glass). The bending happens because light changes speed as it goes from one medium to another.