EVERYDAY SCIENCE

Detailed explanation-1: -Not all bacteria are harmful, and some bacteria that live in your body are helpful. For instance, Lactobacillus acidophilus-a harmless bacterium that resides in your intestines-helps you digest food, destroys some disease-causing organisms and provides nutrients.

Detailed explanation-2: -Bacteria are small single-celled organisms. Bacteria are found almost everywhere on Earth and are vital to the planet’s ecosystems. Some species can live under extreme conditions of temperature and pressure. The human body is full of bacteria, and in fact is estimated to contain more bacterial cells than human cells.

Detailed explanation-3: -They are responsible for many infectious diseases like pneumonia, tuberculosis, diphtheria, syphilis, and tooth decay. Some bacteria cause cellulose degradation thereby destroying textiles, wooden articles, and canvas.

Detailed explanation-4: -Food poisoning: ADVERTISEMENTS: Spoilage of food: Souring of milk, rotting of vegetables and meat are caused by many saprotrophic bacteria. Destruction of domestic articles: ADVERTISEMENTS: Reduction of Soil fertility: Denitrification: Biowar/Bioterrorism: