Which of the following has the smallest diameter - an atom , a bacterium , an animal cell , a plant cell or a human hair ? Explain your answer
i know the answer is atom but i want explanation for it please
please answer it . its urgent please . for grade 7
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Becoz it was once thought that atoms were the smallest things in the universe and could not be divided
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Answer is:- Atom.
Explanation:-
Because size of atom is 10 -¹⁰ m (or 10 -⁸ cm).
But size of a plant cell, a bacterium and a human hair is much larger than size of an atom.
Hope it helps you dear.......xd
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