Question

what are requirements of standard unit​

Answer 1

1. It should be of suitable size.
2. It should be easily available.
3. It should be non-destructible.
4. It should not change with time.
5. It should not change with the place.
6. It should be easily reproducible.

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Answer 2

*＊✿❀ ʜᴇʟʟᴏ ❀✿＊*

ʏᴏᴜʀ ᴀɴsᴡᴇʀ =>

1) ᴘʀᴇᴄɪsᴇ ᴀɴᴅ ᴀᴄᴄᴜʀᴀᴛᴇ

2) ᴘʀᴏᴅᴜᴄɪʙʟᴇ ᴀɴᴅ ɴᴏɴ-ᴅᴇsᴛʀᴜᴄᴛɪʙʟᴇ

3) ᴇᴀsʏ ᴛᴏ ᴜsᴇ ᴀɴᴅ ʜᴀɴᴅʟᴇ