Topic Details (Notes format)

What is the most abundant gas in the Sun?

Which planet is known as the "Red Planet"?

Which planet has the strongest gravitational force?

What is the chemical formula of methane?

Which gas is most abundant in Earth’s atmosphere?

What is the approximate age of the Earth?

What is the most abundant element in the universe?

What is the smallest unit of life?

Which gas is commonly used in balloons to make them float?

Which organelle is known as the "powerhouse of the cell"?