Topic Details (Notes format)

Which is the smallest bone in the human body?

What is the smallest unit of life?

Which part of the human eye is responsible for focusing light on the retina?

What is the approximate age of the Earth?

Which gas is used in fire extinguishers?

Which gas is released during photosynthesis?

What is the largest organ in the human body?

What is the boiling point of water at standard atmospheric pressure?

What is the primary source of energy for life on Earth?

What is the unit of force in the SI system?