<em>→</em><em>Aims of mineral processing</em><em>?</em>
<h2><em><u>Answer:</u></em></h2>
<em>Mineral processing, art of treating crude ores and mineral products in order to separate the valuable minerals from the waste rock, or gangue. </em>
<h2><em><u>Explanation:</u></em></h2>
<em>→</em><em>It is the first process that most ores undergo after mining in order to provide a more concentrated material for the procedures of extractive metallurgy.</em>
Answer:In order to determine the location of an earthquake epicenter, seismographs from at least three different places are needed for a particular event.
