Microbes

Converting atmospheric nitrogen into a form plants can use (correct)

Causing diseases in plants and animals

Producing oxygen through photosynthesis

Breaking down organic matter into simpler compounds

Reducing the nutritional value of agricultural produce

Fermenting dairy products like yogurt and cheese (correct)

Causing spoilage of food items

Increasing the shelf life of perishable foods

Breaking down organic waste and pollutants (correct)

Increasing the volume of waste materials

Preventing the decomposition of organic matter

Generating toxic substances in waste