Topic Details (Notes format)

Which part of the tooth is visible above the gum line, covered by enamel?

Who discovered the Kuiper belt?

Which empire built the monumental Hagia Sophia in Constantinople (now Istanbul) in the 6th century?

Who discovered cosmic microwave background radiation?

Who discovered DNA polymerase?

What does HTTPS stand for in secure web communication?

Which ancient empire built the rock-cut city of Petra in Jordan?

Who discovered ubiquitin?

Which city is famous for Christ the Redeemer statue?

Which is the hardest substance in the human body?