music: 70's Chart Toppers: Name The Artist: Sing A Song?

Questions

Connecticut was granted it's royal charter in what year?

Connecting the Japanese islands of Honshu & Hokkaido, the ________ is the world's longest rail tunnel.?

Contagious febrile disease of animals and, rarely, humans?

Contamination of air, water, or soil by materials that interfere with human health, the quality of life, or the natural functioning of ecosystems?

Conversion of the vibrations of sound (for example, music) into a permanent record, & its later playback in its original form (sound)?