GK
GENERAL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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water is made up of what elements?
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oxygen and carbon dioxide
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helium and hydrogen
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hydrogen and oxygen
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carbon dioxide and helium
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Explanation:
Detailed explanation-1: -Atoms join together to form molecules. A water molecule has three atoms: two hydrogen (H) atoms and one oxygen (O) atom. That’s why water is sometimes referred to as H2O. A single drop of water contains billions of water molecules.
Detailed explanation-2: -The area around the oxygen is somewhat negative compared to the opposite, hydrogen-containing end of the molecule, which is slightly positive. Opposites attract, so this lopsided charge difference allows bonds to form between the hydrogen and oxygen atoms of adjacent H2O molecules.
Detailed explanation-3: -Hydrogen is an essential element for life. It is present in water and in almost all the molecules in living things.
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