The answer is Denitrification.
Denitrification is the reduction of nitrates back into the largely inert nitrogen gas (N2), completing the nitrogen cycle. This process is performed by bacterial species such as Pseudomonas and Clostridium in anaerobic conditions.
Answer:
6.c
8.c
I'm not sure about the rest.
Answer:D. they release water vapor when they exhale.
Explanation:The water cycle can be described as the cycle of different processes by which the water circulates between the ocean, atmosphere, and the land.
I would say B.) very fast growth and development.