Why trees need Salmon - Answers
Find the answers on the "salmon need tress" activity on this page. You can link this activity to the Nitrogen cycle, ecosystems and general human impact on the environment. 1. What activity would the bear do to add NH4 (ammonia) to the Nitrogen cycle? excretion of urine and faecal material 2. Name a transformation of matter in the above diagram? Nitrates to nitrites; ammonia to nitrates; nitrites to nitrogen gas 3....