The mineral that is found is Sedimentary Rocks
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It depends on what kind and how much. Some are about $100, and others are $1,000.
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Cloudy nights can be warmer than clear nights because clouds trap heat absorbed by Earth during daylight hours.
Molarity is expressed as the number of moles of solute per volume of the solution. For example, we are given a solution of 2M NaOH this describes a solution that has 2 moles of NaOH per 1 L volume of the solution. Acids and bases can be measured through the concentrations of H+ and OH- ions in units of molarity. Hope this helps.