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Which human organ is primarily responsible for producing bile?
What is the study of heredity called?
What is the unit used to measure atmospheric pressure?
What type of lens is used to correct nearsightedness (myopia)?
What is the hardest natural substance found on Earth?
Which gas is commonly used in balloons to make them float?
What is the boiling point of water at sea level in Celsius?
What is the powerhouse of the cell called?
Which gas do plants absorb from the atmosphere for photosynthesis?
Which disease is caused by a deficiency of iodine?