Which of the following best describes the nitrogen cycle?
cycling of nitrogen and oxygen that contributes 78% of atmospheric gases and drives food webs
cycling of nitrogen and oxygen that involves changes between the solid, liquid, and gas phases
cycling of nitrogen that contributes 78% of atmospheric gases and drives food webs
cycling of nitrogen that involves changes between the solid, liquid, and gas phases

answer: national resource conservation services

national resource conservation services is the us. based approach that provides technical and financial assistance for natural resource management. nrcs society in conservation of resources by involving in activities like farmland protection, flood prevention, watershed protection, urban conservation, conserves economic and environmental conditions. it conducts soil surveys and implements the policy of natural resources management on the society.

c. establishing proper sleep hygiene