Sand is a granular material composed of fine mineral particles. Sand comes from different sources, locations, and environments. Sand is formed when rocks break down from weathering and erosion over ...

Did you know that alum is commonly known as 'fitkari'? Alum is a class of hydrated double sulphate salts. Alum is referred to as a double salt because it contains two different cations (like K⁺ and ...

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