Nitrogen is very important for the life on earth. Over 90% of the earth's supply existsas a gas in the atmosphere. The diagram below describes the nitrogen cycle. Summarise the information by selecting and reporting the main features, and makecomparisons where relevant.

The diagram illustrates the nitrogen cycle, a continuous process that converts atmospheric nitrogen into forms usable by living organisms and returns it to the atmosphere. Nitrogen primarily enters the cycle from the atmosphere, where it constitutes the vast majority of the gas. Two key fixation processes incorporate it into the soil: lightning converts gaseous nitrogen […]

Approximately 90% of nitrogen exists in our atmosphere and can be fixated on Earth in two ways. Firstly, plants fixate nitrogen, transferring it to the soil in the form of ammonium, which then converts into nitrite and nitrate. Secondly, nitrogen gas can be fixated by lightning, which directly converts it into nitrate. Nitrate in the […]