While eating food we should always chew our food well and not talk while eating. Why ?
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How air particles exert a pressure on the inside of the balloon

In 2002, the rare earth elements mine in mountain pass, california was closed because

How can you write e method for the experiment of separating sand from water by filtration process? 1-materials 2-steps 3-conclusion also the same for the separating process of water and salt by filtration or distillation. quick because i need to finish my hw