A virus is a tiny organism that causes an infection in the body. Viruses are made up of the genetic material known as DNA or RNA, which the virus uses to replicate. In order for a virus to survive, it must invade and attach itself to a living cell.
In 1975, the name of the Borough of Richmond was changed to the Borough of Staten Island. There are two dates on the flag.The county government was established in 1683.n 1975, the name of the Borough of Richmond was changed to the Borough of Staten Island. There are two dates on the flag. The county government was established in 1683.
The London Borough of Croydon is Londonâs most southern borough. Itâs the largest London borough by population. Croydon is mentioned in the Domesday Book â from a small market town it expanded into one of the most populous areas on the fringe of London. It's currently going through a large regeneration project, predicted to attract more businesses and tourists.