Bacteria help us in many ways- it helps in 1Making curd ( Lactobacillus bacteria) 2Retting of fibres 3 Tanning of leather 4 Nitrification (in plants ) 5 Denitrification """""""""
Yash Khange answered this
Bacteria ?have long been?used?by humans to create food products such as cheese, yoghurt, pickles, soy sauce and vinegar. We are also able to?use bactria?to break down our sewage and to clean up oil spills
Lakshya answered this
Bacteria is used for humans to make food like your word vinegar pickles soya sauce and it is used for cleaning of oil spills also