Food security (Edexcel GCSE Biology): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What does food security refer to?
What does food security refer to?
Sufficient, safe & nutritious food supply
What can overuse of land due to increasing population lead to?
What can overuse of land due to increasing population lead to?
Soil depletion & reduced crop yields
Why do resource-intensive diets in developed countries strain global food supplies?
Why do resource-intensive diets in developed countries strain global food supplies?
They increase demand for limited resources
What are pathogens?
What are pathogens?
Disease-causing organisms
How does climate change affect food production?
How does climate change affect food production?
It causes droughts, floods & unpredictable weather
What risk does increasing demand for fish create?
What risk does increasing demand for fish create?
Over-fishing so not enough fish in future
What happens to energy and biomass as you move up the food chain?
What happens to energy and biomass as you move up the food chain?
They decrease at each level
What does burning fossil fuels release?
What does burning fossil fuels release?
Carbon dioxide, a greenhouse gas
What does sustainability mean?
What does sustainability mean?
Meeting today's needs without harming future generations
What is the problem with growing crops for biofuels?
What is the problem with growing crops for biofuels?
They take up land that could grow food crops
Why do new pests and pathogens reduce crop yields significantly?
Why do new pests and pathogens reduce crop yields significantly?
Crop populations may not be resistant to them
What role do decomposers play in ecosystems?
What role do decomposers play in ecosystems?
They break down waste & return elements to soil/air