5.2 Agriculture and food Quiz
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5 questions, one answer each
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1. Which was NOT part of the Green Revolution?
- A. High-yielding crops
- B. Synthetic fertiliser
- C. Pesticides
- D. Shifting cultivation with long fallows
2. Why are diets lower in trophic levels more sustainable?
- A. Plants contain more protein
- B. Less energy is lost, so less land is needed per unit of food energy
- C. They need no soil
- D. They avoid all emissions
3. Food security means:
- A. Everyone can buy luxury food
- B. Physical and economic availability of food for a balanced diet
- C. High yields for farmers only
- D. Food storage by governments
4. A traditional technique that sustains low-density populations is:
- A. Hydroponics
- B. Nomadic pastoralism
- C. Genetic modification
- D. Vertical farming
5. Which is a soil conservation technique?
- A. Terracing
- B. Overgrazing
- C. Repeated ploughing without cover
- D. Burning crop residues on bare soil