Solution
Correct Answer: Option B
Efflorescence- পুস্পায়ন
এই শব্দটি তিনটি ক্ষেত্রে ব্যাবহার হতে পারেঃ
1. chemistry: The formation of a powdery surface on crystals, as a hydrate is converted to anhydrous form by losing loosely bound water of crystallization to the atmosphere.
2. botany: The production of flowers.
3. construction: An encrustation of soluble salts, commonly white, deposited on the surface of stone, brick, plaster, or mortar; usually caused by free alkalies leached from mortar or adjacent concrete as moisture moves through it.