Topic Details (Notes format)

Which gas is most abundant in Earth’s atmosphere?

What is the chemical symbol for the element iron?

What is the most abundant gas in the Sun?

Which type of radiation has the shortest wavelength?

What is the SI unit of temperature?

Which organ in the human body produces bile?

What is the function of platelets in the human body?

What is the main component of the human skeleton?

Which gas is used in fire extinguishers?

Which planet is known as the "Red Planet"?