Topic Details (Notes format)

Who discovered the first dinosaur fossils?

In computing, which device converts digital signals to analog and vice versa for telephone lines?

Which of the following is the longest river in the world?

What are the two main gases in Earth’s atmosphere?

In which layer of the Earth do convection currents drive plate tectonics?

Which NASA mission successfully landed the first humans on the Moon in 1969?

Which scientists are credited with discovering the double-helix structure of DNA?

Who is the Greek god of the sea?

Which element has the chemical symbol "Rf"?

Which is the world’s tallest grass, often used for construction in Asia?