Anything that can bring about a mutation in DNA is called a mutagen. Most mutagens fall into one of two categories: They are either a form of energy or a chemical. In addition to X rays, other forms of radiation that can cause mutagens include ultraviolet radiation, gamma rays, and ionizing radiation.
Amount of Time Worked. Pennsylvania employees must accrue at least 16 benefit weeks to receive unemployment compensation. Credit weeks are seven-day periods when workers receive at least $50 in earned income. These credit weeks do not have to be consecutive, but they must all occur within the state-designated base year.
You must work for a certain period of time before you can receive unemployment so that employees who have paid in to the unemployment system with their time can reap the benefits while those who have not put in the time do not get benefits.or example, if you must earn at least $700 in one quarter, you also must earn at least $1,750 in total to qualify for unemployment. State laws vary on the maximum amount of time you can receive benefits. In many states, you may receive benefits for between 72 and 79 weeks.