Question

It is the hardest substance

Answer 1

Answer:

The hardest substance known is diamond. [but see note below] Diamond is made up entirely of the element carbon. (Another thing that is made entirely of carbon is graphite, one of the softest substances.) Diamond's hardness is roughly 10.5-14.5 million psi.

Answer 2

Answer:

ʜɪ ᴍᴀᴛᴇ,

ʜᴇʀᴇ ɪs ʏᴏᴜʀ ᴀɴsᴡᴇʀ,

ᴀɴsᴡᴇʀ:-

• ᴅɪᴀᴍᴏɴᴅ ɪs ᴛʜᴇ ᴡᴏʀʟᴅ's ᴋɴᴏᴡɴ ʜᴀʀᴅᴇsᴛ sᴜʙsᴛᴀɴᴄᴇ. ɪᴛ ɪs ᴀ ᴍɪxᴛᴜʀᴇ ᴏғ ᴄᴀʀʙᴏɴ. ɪᴛ ɪs ᴀɴ ᴇxɪsᴛɪɴɢ ғᴏʀᴍ ᴏғ ᴄᴀʀʙᴏɴ ɪɴ ᴛʜɪs ɴᴀᴛᴜʀᴇ. ɪᴛ ɪs ᴜsᴇᴅ ɪɴ ᴏʀɴᴀᴍᴇɴᴛs ᴀɴᴅ ᴠᴀʀɪᴏᴜs ᴍᴇᴛᴀʟʟᴜʀɢɪᴄᴀʟ ᴘʀᴏᴄᴇssᴇs.

ᴍᴀʀᴋ ᴀs ʙʀᴀɪɴʟɪᴇsᴛ