How do humans alter the nitrogen cycle, and what can scientists, engineers, and the public do to mitigate the damage?

Describe three pathways for the utilization of atmospheric nitrogen. Is human activity a significant factor? Explain

What is a "zero waste economy"?

Where the 70% of total global carbon is found?

What is a primary producer?

In the nitrogen cycle, ? Occurs when nitrogen gas is converted to form usable to plants, often by nitrogen-fixing ?

What is the role of legumes in the nitrogen cycle? O They convert unuseable N2 gas into a useable form They breakdown dead tissue, releasing the nitrogen into the soil for plants to take up. They break nitrogen free from rocks, releasing into the lithosphere. O They take in nitrogen gas via photosynthesis and use it to make biological molecules.

How would the nitrogen cycle operate in the absence of bacteria and archaeons?

6) Which of the following is not a source of carbon in the biosphere? A) Ocean rocks and sediments.B) Fossil fuels and calcium carbon rock underground.C) The oceans as dissolved carbon dioxide.D) Carbon dioxide in the atmosphere.

What is the fate of most nitrogen used in agriculturalapplications?