Food security (Edexcel GCSE Biology Combined Science): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What does food security refer to?
What does food security refer to?
Sufficient, safe & nutritious food
What can overuse of land due to rising population lead to?
What can overuse of land due to rising population lead to?
Soil depletion & reduced crop yields
How do changing diets in developed countries affect food security?
How do changing diets in developed countries affect food security?
They increase resource-intensive demands
What are pathogens?
What are pathogens?
Disease-causing organisms
Which climate change impacts affect crop yields?
Which climate change impacts affect crop yields?
Droughts, floods & unpredictable weather
What happens to energy as you move up the food chain?
What happens to energy as you move up the food chain?
Less energy & biomass at each level
What does sustainability mean in food production?
What does sustainability mean in food production?
Meeting today's needs without harming future
What is a disadvantage of growing crops for biofuels?
What is a disadvantage of growing crops for biofuels?
They take up land for food crops
Why do new pests and pathogens cause major crop damage?
Why do new pests and pathogens cause major crop damage?
Populations may lack resistance to them
What role do decomposers play in ecosystems?
What role do decomposers play in ecosystems?
They break down waste & return elements