General Trivia (6)

What is the longest river in the world?

Which ancient civilisation built Machu Picchu?

What is the hardest natural substance on Earth?

What is the most abundant gas in Earth's atmosphere?

Which city is home to the Acropolis?

Who developed the theory of general relativity?

Who wrote The Origin of Species?

What is the largest desert in the world?

Which planet has the most moons?

Who discovered penicillin?