Could someone please explain the difference between the Hijab Chador and Roosarie?

The hijab is a headscarf worn by Muslim women that covers the head and neck, while leaving the face exposed. A chador is a full-body outer garment that covers the head and is wrapped around the body, leaving only the face visible. A roosari is a traditional Iranian headscarf that covers the head and neck, often worn with a long coat or tunic.