Question

5. Define the following:
1. Sericulture
2. Irreversible change
3. S.l. unit​

Answer 1

Explanation:

A change is called irreversible if it cannot be changed back again. In an irreversible change, new materials are always formed. Sometimes these new materials are useful to us.

Answer 2

ꜱᴇʀɪᴄᴜʟᴛᴜʀᴇ :-

ꜱᴇʀɪᴄᴜʟᴛᴜʀᴇ ɪꜱ ᴛʜᴇ ᴩʀᴏᴄᴇꜱꜱ ᴏꜰ ᴄᴜʟᴛɪᴠᴀᴛɪɴɢ ꜱɪʟᴋᴡᴏʀᴍꜱ ᴀɴᴅ ᴇxᴛʀᴀᴄᴛɪɴɢ ꜱɪʟᴋ ꜰʀᴏᴍ ᴛʜᴇᴍ.

ɪʀʀᴇᴠᴇʀꜱɪʙʟᴇ ᴄʜᴀɴɢᴇ:-

ᴀ ᴄʜᴀɴɢᴇ ᴡʜɪᴄʜ ᴄᴀɴɴᴏᴛ ʜᴀᴩᴩᴇɴ ʙᴀᴄᴋᴡᴀʀᴅ, ᴛʜᴀᴛ ɪꜱ, ɪᴛ ᴄᴀɴɴᴏᴛ ʙᴇ ʀᴇᴠᴇʀꜱᴇᴅ ɪꜱ ᴄᴀʟʟᴇᴅ ᴀɴ ɪʀʀᴇᴠᴇʀꜱɪʙʟᴇ ᴄʜᴀɴɢᴇ.

ꜱ.ɪ. ᴜɴɪᴛ:-

ꜱɪ ᴜɴɪᴛ ɪꜱ ᴀɴ ɪɴᴛᴇʀɴᴀᴛɪᴏɴᴀʟ ꜱyꜱᴛᴇᴍ ᴏꜰ ᴍᴇᴀꜱᴜʀᴇᴍᴇɴᴛꜱ ᴛʜᴀᴛ ᴀʀᴇ ᴜꜱᴇᴅ ᴜɴɪᴠᴇʀꜱᴀʟʟy ɪɴ ᴛᴇᴄʜɴɪᴄᴀʟ ᴀɴᴅ ꜱᴄɪᴇɴᴛɪꜰɪᴄ ʀᴇꜱᴇᴀʀᴄʜ ᴛᴏ ᴀᴠᴏɪᴅ ᴛʜᴇ ᴄᴏɴꜰᴜꜱɪᴏɴ ᴡɪᴛʜ ᴛʜᴇ ᴜɴɪᴛꜱ.