Earth Science

Top Most Expensive Materials in the World

What are the Top Most Expensive Materials in the World? Human beings have recognised the value of everything from the dawn of civilisation. For many centuries people had misconceptions that Gold and diamonds are the most expensive materials. But that is nowadays this is absolutely wrong. Now, you have a question then what are the …

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Petroleum: Source, Formation and Classification

Petroleum is a fossil fuel, formed from trees plants, bacteria and algae. Over a million years, under the earth, due to high heat and pressure, fossils converted into high-carbon usable fuels. Petrol: Crude comes from where?  Have refuelled your car? …… Ohhh No??? You must need to go to the Petrol or fuel station, and …

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