Question

Hᴏᴡ ғʀɪᴄᴛɪᴏɴ ɪs ɴᴇᴄᴇssᴀʀʏ ᴇᴠɪʟ?​

Answer 1

Answer:

because without friction we can't walk on floor

we can slip without friction

wear and tear of machine is due to friction

hope it's help you ^_^

Answer 2

Friction is said to be a necessary evilbecause it is useful as well as harmful.friction helps us to walk, write, hold things, lift objects. So it is necessary in our lives. Without friction many essential processes can not be done.