4. What is sieving? Where is it used?
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Sieving is a process by which fine particles are separated from bigger particles by using a sieve. It is used in flour mill or at construction sites. In flour mill, impurities like husks and stones are removed from wheat. Pebbles and stones are removed from sand by sieving.
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sɪᴇᴠɪɴɢ ɪs ᴀ ᴘʀᴏᴄᴇss ʙʏ ᴡʜɪᴄʜ ғɪɴᴇ ᴘᴀʀᴛɪᴄʟᴇs ᴀʀᴇ sᴇᴘᴀʀᴀᴛᴇᴅ ғʀᴏᴍ ʙɪɢɢᴇʀ ᴘᴀʀᴛɪᴄʟᴇs ʙʏ ᴜsɪɴɢ ᴀ sɪᴇᴠᴇ.
ɪᴛ ɪs ᴜsᴇᴅ ɪɴ ғʟᴏᴜʀ ᴍɪʟʟ ᴏʀ ᴀᴛ ᴄᴏɴsᴛʀᴜᴄᴛɪᴏɴ sɪᴛᴇs. ɪɴ ғʟᴏᴜʀ ᴍɪʟʟ, ɪᴍᴘᴜʀɪᴛɪᴇs ʟɪᴋᴇ ʜᴜsᴋs ᴀɴᴅ sᴛᴏɴᴇs ᴀʀᴇ ʀᴇᴍᴏᴠᴇᴅ ғʀᴏᴍ ᴡʜᴇᴀᴛ. ᴘᴇʙʙʟᴇs ᴀɴᴅ sᴛᴏɴᴇs ᴀʀᴇ ʀᴇᴍᴏᴠᴇᴅ ғʀᴏᴍ sᴀɴᴅ ʙʏ sɪᴇᴠɪɴɢ.
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