Denitrification

Question 0

Occurs in

Answer 0

Water-saturated soil and aquatic environments.

Question 1

Denitrification converts

Answer 1

Fixed nitrogen back to dinitrogen (and to N2O and NO)

Question 2

Occurs in oxygen-poor environments,

Answer 2

Nitrate is added by diffusion.

Question 3

The production of nitrus oxides, N2O,

Answer 3

Significantly contributes to the GH effect.

Question 4

Organic matter + NO3 ➡️

Answer 4

➡️ N2 / N2O / NO

Denitrification

Question 5

Denitrification is carried out by

Answer 5

Microbes in anaerobic conditions.

Question 6

Nitrate acts as an oxidising agent, the result is

Answer 6

Loss of nitrogen, converted to nitrus oxide, N2O, and nitrogen gas, N2.

Question 7

Denitrifying bacteria use

Answer 7

NO3- instead of O2