ᴡʜᴀᴛ ɪꜱ ᴘᴀꜱꜱɪᴠᴀᴛɪᴏɴ
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Explanation:
ᴘᴀssɪᴠᴀᴛɪᴏɴ ᴍᴇᴀɴs ᴄᴏᴀᴛɪɴɢ ᴏғ ᴍᴀᴛᴇʀɪᴀʟ
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Explanation:
passivation means coating of material
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