Food security (AQA GCSE Biology): Flashcards
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What is food security?
What is food security?
Having enough food to feed everyone in a population
Impact of population increase on food demand
Impact of population increase on food demand
More people need more food, creating greater demand
Why is more land needed as population grows?
Why is more land needed as population grows?
To grow crops and raise animals for meat and fish
How does movement of people/goods affect food security?
How does movement of people/goods affect food security?
Spreads pests and diseases that damage crops and animals
3 environmental harms of intensive farming
3 environmental harms of intensive farming
Harms soil quality, pollutes water, reduces biodiversity
What is bluetongue disease?
What is bluetongue disease?
Viral disease affecting sheep and cattle, spread by insects
Why is bluetongue spreading to UK?
Why is bluetongue spreading to UK?
Climate change warms UK; insects carrying it can now survive
How do conflicts threaten food security?
How do conflicts threaten food security?
Disrupt farming, destroy equipment, force people from farms
Economic factors increasing food production costs
Economic factors increasing food production costs
Rising fuel, fertiliser, machinery, and seed costs
Effect of reduced rainfall
Effect of reduced rainfall
Can cause widespread famine
Impact of floods and droughts
Impact of floods and droughts
Destroy crops
Effect of changing diets on food systems
Effect of changing diets on food systems
Some foods need more resources, adding pressure