1What does the nitrogen cycle recycle?
Nitrogen in ecosystems
2Which organisms are involved in nitrogen cycling?
Bacteria and fungi
3What converts nitrogen gas into ammonia?
Nitrogen-fixing bacteria
4What is ammonium converted into?
Nitrites and nitrates
5What role do plants play in the nitrogen cycle?
Absorb nitrates for growth
6How are nitrates returned to the soil?
Through decomposition of dead organisms
7What is the process of converting ammonia to nitrates?
Nitrification
8What does denitrifying bacteria do?
Convert nitrates into nitrogen gas
9What type of bacteria converts ammonium to nitrates?
Nitrifying bacteria
10What is the importance of nutrient cycling?
Recycles essential elements for ecosystems