North Carolina Central University Comprehension Question

Answer the following questions and upload your answers to this submission link.

What is biogeochemical cycling in ecosystems?
What are the causes of and the results of disruptions in the nitrogen and carbon biogeochemical cycle?
What are the sources of toxins in ecosystems? In what ways do they enter living things/humans?
What is bioaccumulation and biomagnification in regards to toxins in living organisms and ecosystems?
List 3 natural substances found in ecosystems that are toxic to humans
Why are endocrine disruptors so harmful to humans?
In Europe, a precautionary principle approach is used before releasing a new chemical on the market. What type of approach is used in the US? How many chemicals are tested for toxicity before being released for public consumption?

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