IGCSE O Level Biology MCQs - Chapter 7
Effects of Human Activity on Ecosystem Trivia Questions and Answers PDF - 8
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Effects of Human Activity on Ecosystem Questions & Answers PDF Download: MCQ Quiz 8
MCQ 36: High concentrations of carbon monoxide (CO)
- reduces capacity of blood transport
- reduces capacity of oxygen transportation through blood in the body
- is caused due to incomplete fossil decay
- is caused due to smog formation
MCQ 37: Cadmium is an example of
- organic waste
- inorganic waste
- nitrogenous waste
- carbonic waste
MCQ 38: Fossil fuels and minerals are examples of
- renewable resources
- non-renewable resources
- artificial resources
- pollutants
MCQ 39: Over a period of time, mosquitoes have developed resistance to
- dichlorodiphenyl trichloroethane (DDT)
- biochemical oxygen demand (BOD)
- dioxins
- eutrophication
MCQ 40: Which one is a characteristic of fossil fuels
- cannot be recycled
- can be recycled
- can be reused
- can be reprocessed
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