Human impacts on ecosystems MCQs

By: Prof. Dr. Fazal Rehman | Last updated: June 10, 2025

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1. : What is the term for the introduction of harmful substances or products into the environment?



2. : Which of the following is a major cause of habitat destruction?



3. : What is the primary cause of global warming and climate change?



4. : How does deforestation primarily affect the carbon cycle?



5. : What is the term for the process where excess nutrients in water bodies lead to the growth of algae and depletion of oxygen?



6. : Which of the following is an example of overexploitation?



7. : What is an effect of invasive species on native ecosystems?



8. : How does plastic pollution in oceans primarily affect marine life?



9. : Which of the following human activities is most directly associated with the depletion of the ozone layer?



10. : What is biodiversity, and why is it important for ecosystems?



 

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