A microscope is an instrument which makes an object appear bigger than it is. It took the invention of this relatively simple tool to lead to the discovery of cells<span>. In the 1660s, Robert Hooke began using microscopes to look at all sorts of materials. Anton van Leeuwenhoek took up similar work in the 1670s.</span>
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A water from rain or springs flows downhill in a narrow channel
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cassidywilson553494 avatar
Protein,or Carbohydrates,or,Lipids, or , nucleic acid
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False, hearing is caused by the eardrum picking up sound frequencies made by Jil. So its not the air molecules, its the sound waves.
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I can't see the questions sorry :(