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Basic science knowledge
(228 votes)
10 questions
English
What is the chemical formula for carbon dioxide?
81% got this right
What is the hardest natural substance on earth?
Which planet is known as the red planet?
What is the power house of the cell?
What is the Earth's outmost layer called?
What is the process of water vapor turning into liquid water called?
What is the layer of gases surrounding the earth called?
Which of the following is not a type of rock?
How many bones are there in the human body?
How many teeth does an adult have?