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- It is called liquid gold because of its high price and value and its economic need by all the countries worldwide. Answer: Petroleum is present in abundant quantity in the some regions . ... So it is considered as Liquid gold, which they value a lot.
- Sodium, potassium, chloride, calcium, magnesium, and phosphate are examples of electrolytes.
- because they are man-made and made by people by using some chemicals. In these fibers small units are there which by joining together forms a long chain. There are some fibres that are prepared by man by using chemicals. These are called synthetic fibres.
- Ductility is a measure of a metal's ability to withstand tensile stress—any force that pulls the two ends of an object away from each other. ... The term "ductile" literally means that a metal substance is capable of being stretched into a thin wire without becoming weaker or more brittle in the process
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