Food Security (Grade 11 NSC Matric Life Sciences): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What does the WHO emphasise in its definition of food security?
What does the WHO emphasise in its definition of food security?
Physical and economic access
When did the world's population reach 1 billion people?
When did the world's population reach 1 billion people?
Early 1800s
How much food is wasted worldwide each year?
How much food is wasted worldwide each year?
A third of global food production
In developing countries, what percentage of food is lost during production and transport?
In developing countries, what percentage of food is lost during production and transport?
40%
What is monoculture?
What is monoculture?
Farming a single crop over a large area
What does a large gene pool indicate?
What does a large gene pool indicate?
Great genetic diversity and strong stock
How do alien invasive plants reduce water available for crops?
How do alien invasive plants reduce water available for crops?
They use more water than indigenous plants
Which benefit do GM foods provide for food security?
Which benefit do GM foods provide for food security?
They tolerate drought and salty soils
What is bio-accumulation in relation to pesticides?
What is bio-accumulation in relation to pesticides?
Toxins building up in the food chain
What percentage of South African agricultural land is used for grazing?
What percentage of South African agricultural land is used for grazing?
Almost 70%