In an aerosol can used for spray paint, a highly compressed "propellant" move the liquid into a "dip tube" so that it can be sprayed out. the valve through which the liquid sprays is usually closed, but when it is pressed down, it opens and allows material to pass through.
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What type of cell is produced after fertilization occurs and the gametes combines ?
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Why are current extinctions of concern to enviromentalists?
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In an aerosol can used for spray paint, a highly compressed "propellant" move the liquid into a "di...
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