It's estimated that without the development of this agricultural technology, the global population would
never have exceeded 4 billion people.

Industrial fixation of Nitrogen

Explanation:

Industrial fixation of nitrogen has enabled humans to be able to make nitrogen fertilizers that are able to supply plants with much needed nitrogen that they need to survive. Indeed it is said that up to 40% of the nitrogen taken up by plants is from artificial sources.

The world's population might not be what it is today without this invention because it was able to return nitrogen to the soil at a time when humans needed it because we had been intensively farming land which led to it losing nutrients.

More nitrogen allowed us to keep farming and keep feeding the population which then exploded.

the endocrine system secretes hormones into blood and other body fluids. these chemicals are important for metabolism, growth, water and mineral balance, and the response to stress. hormones provide feedback to the brain to affect neural processing. reproductive hormones affect the development of the nervous system.

c

explanation: