music: 80's Chart Toppers: Name The Artist: I Am By Your Side?

Questions

What is the eleventh letter of the greek alphabet?

Which John Steinbeck novel deals with the Joad family's move from Oklahoma dustbowl to California?

In which street in London did the Great Fire start?

He was a monk,scholar and scientist who died in 1920, nicknamed Dr Mirabilis.Credited with inventing gunpowder and magnifying glasses?

Name given to the deep limestone shafts in N Yorkshire-they give their name to the pass between Wensleydale and Swaledale?