Nitrogen

Question 1

What are some natural sources of Nitrogen?

Answer 1

Legumes fix Nitrogen to soil.
Lightning.

Question 2

What are some industrial sources of Nitrous oxide?

Answer 2

Thermal heating/Combustion
Fuel use

Question 3

What is wrong with acid rain?

Answer 3

Destroys plants, pollutes water sources, and erodes infrastructure.

Question 4

What are the primary sources of N pollution?

Answer 4

Agriculture
Fossil Fuel Combustion
Food and Wastewater

Question 5

What is denitrification?

Answer 5

Converts (reactive N) Nr back into unreactive N2, but is also coupled to the production of the greenhouse gas and ozone-depleting substance N 2O

Question 6

What are some of the impacts of reactive Nitrogen?

Answer 6

Smog/Haze (health issues)
Forest impacts
Acidification of water and environments
Contributes to Ozone depletion
Global Warming
Eutrophication

Question 7

What are some ways to mitigate Nitrogen pollution?

Answer 7

• Making fertiliser use more efficient (and replacing with legumes where possible)
• Focusing on Soil carbon sequestering
• Reducing GHG emissions