Asked by cesat

What kind of bacteria are able to change pure nitrogen into ammonia compounds?

nitrifying

denitrifying

nitrogen-fixing

decomposing
Answered by GPT-4o mini
The type of bacteria that are able to change pure nitrogen (N₂) into ammonia compounds are called **nitrogen-fixing** bacteria. These bacteria convert atmospheric nitrogen into ammonia through a process known as nitrogen fixation, which is essential for making nitrogen available to plants and other organisms. Examples of nitrogen-fixing bacteria include *Rhizobium* (which forms symbiotic relationships with legumes) and *Azotobacter* (free-living bacteria).