Nitrogen Cycle

Question 1

Decomposers produce what

Answer 1

Ammonia

Question 2

Bacteria convert the ammonia to what

Answer 2

nitrites and nitrates

Question 3

Nitrate

Answer 3

NO3

Question 4

Nitrites

Answer 4

NO2

Question 5

Ammonia

Answer 5

NH3

Question 6

Plants to in what to make more ammonia

Answer 6

NO3

Question 7

What do plants use ammonia for?

Answer 7

Making DNA and proteins

Question 8

If ammonia, Nitrates and nitrites build up what can happen?

Answer 8

It can be toxic for many organisms (even humans)

Question 9

Human what adds ammonia to the environment

Answer 9

Urinate and produce fecal matter

Question 10

Fertilizers contain what

Answer 10

Ammonia (NH3) and (NO3)

Question 11

When ammonia ends up in rivers what reduces the amount of oxygen in rivers?

Answer 11

When NH3 comes in contact with O2 it creates NO3 as a waste product

Question 12

What is the Nitrogen Cycle?

Answer 12

A conversion of nitrogen from one form to another.

Question 13

If nitrate levels are high what is the oxygen level?

Answer 13

Very low, the conversion of NH3 to NO2 then to NO3 requires oxygen. Oxygen is taken out of the water to do this.

Question 14

If fish die in the rivers because of low oxygen, what happens?

Answer 14

The O2 level gets lower as their bodies decompose and continue to suck up oxygen.