General Knowledge Quiz | Polar Herald

What is the chemical symbol for water?

Which metal is liquid at room temperature?

Which planet is known as the Red Planet?

Which gas do humans need to breathe in to survive?

What is the freezing point of water in degrees Celsius?

How many continents are there on Earth?

How many days are there in a leap year?

Which star is closest to Earth?

How many sides does a hexagon have?

What is the hardest known naturally occurring material?