← SetsScience — Set 3
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Science Practice Questions — Set 3
10 free Science reviewer questions with answers and explanations. Pindutin ang sagot mo para makita agad kung tama — kasama na ang paliwanag. Set 3 of 5.
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Which gas is primarily produced as a byproduct of the process of photosynthesis?
22
What is the hardest known natural substance found on Earth?
23
Which vitamin is primarily produced in the human skin when it is exposed to sunlight?
24
What is the name of the process by which a liquid changes into a gas below its boiling point?
25
In genetics, what is the term for a specific segment of DNA that codes for a particular trait?
26
Which subatomic particle carries a negative electrical charge within an atom?
27
What is the scientific name for the voice box in the human respiratory system?
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Which type of blood vessel is responsible for carrying blood away from the heart?
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What is the chemical symbol for the element Iron in the periodic table?
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