Human impact and conservation Quiz
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5 questions, one answer each
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1. Which process causes fish to die after fertiliser run-off enters a lake?
- A. The fertiliser poisons the fish gills directly
- B. Algae release oxygen at night
- C. Decomposers use up the oxygen in the water
- D. The water becomes too cold
2. Which is an example of an introduced species?
- A. Cane toads in Australia
- B. Kangaroos in Australia
- C. Orang-utans in Borneo
- D. Coral in the Indian Ocean
3. Which is a sustainable way to manage fish stocks?
- A. Using smaller-mesh nets
- B. Setting catch quotas
- C. Fishing only breeding adults in spring
- D. Removing all predators
4. How does deforestation add to climate change?
- A. It increases photosynthesis
- B. It makes soil more fertile
- C. It produces ozone
- D. It removes trees that take in carbon dioxide, and burning releases more
5. A conservation project uses drones to detect illegal logging but local workers lose their jobs. For a criterion D evaluation, what should the student do?
- A. Only list the benefits
- B. Ignore the workers because they are not scientists
- C. Weigh the environmental benefits against the effect on workers and reach a justified conclusion
- D. Say the technology is simply good