Topic Details (Notes format)

What is the pH of pure water at 25°C?

What is the approximate age of the Earth?

Which organ in the human body produces bile?

What is the main component of the human skeleton?

What is the main function of the ozone layer?

What is the main component of natural gas?

Which process describes the splitting of a nucleus into smaller nuclei?

Which is the smallest bone in the human body?

Which vitamin is responsible for blood clotting?

What is the most abundant gas in the Sun?