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Question 1 of 10
What scale is used to measure the acidity or alkalinity of a substance?
Question 2 of 10
Which vitamin is primarily synthesized when skin is exposed to sunlight?
Question 3 of 10
What is the main gas found in the sun?
Question 4 of 10
What is the chemical formula for table salt?
Question 5 of 10
What type of galaxy is the Milky Way?
Question 6 of 10
Which particle has a negative electrical charge?
Question 7 of 10
Which organelle is known as the powerhouse of the cell?
Question 8 of 10
Which part of the brain controls balance and coordination?
Question 9 of 10
What type of bond involves the sharing of electron pairs between atoms?
Question 10 of 10
What is the process by which plants lose water vapor through their leaves?
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