Agriculture and food production Quiz
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5 questions, one answer each
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1. Why do farmers apply nitrate fertiliser to a crop?
- A. To remove weeds
- B. To kill pests
- C. To provide light
- D. To replace minerals removed from the soil
2. What causes fish to die after fertiliser runs into a lake?
- A. The fertiliser is poisonous to fish
- B. The water becomes too cold
- C. Decomposers use up the oxygen in the water
- D. Algae eat the fish
3. Which is an advantage of hydroponics?
- A. It needs no energy
- B. It uses less water because the solution is recycled
- C. It can grow every type of crop
- D. It needs no minerals
4. Why can pesticides stop working over time?
- A. The pests get used to the smell
- B. Resistant pests survive and breed, passing on resistance
- C. Pesticides are washed away by wind
- D. Pests learn to avoid them
5. Which is an example of biological control?
- A. Spraying a herbicide
- B. Adding nitrate fertiliser
- C. Releasing ladybirds to eat aphids
- D. Growing a single crop