. Explain cultural eutrophication in aquatic ecosystems and the human-induced factors that contribute to it.
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Explain how human activities can cause an imbalance
in biogeochemical cycling and lead to problems such as
cultural eutrophication and fish kills
List and explain 4 factors that are causing the decline of biodiversity and ecosystems. How are human activities affecting biodiversity and leading to extinctions?
Biologists sometimes damage ecosystems in order to study them. For example, researchers have fogged rainforest trees with insecticides to search for undiscovered species that fall to the ground when poisoned. Other have deliberately added phosphates to natural lakes to study the eutrophication process. What is your ethical position on such studies? Should they be banned,or is the knowledge gained worth the harm they cause?