Food Security (Grade 11 NSC Matric Life Sciences): Flashcards

Nutritious food available to all people at all times

Size increases at greater and greater rate

Farming single crop or breed over large area

All different genes in a breeding population

1.3 billion tonnes (third of production)

Second largest worldwide after diseases

Farming traditionally to feed themselves to survive

Toxins build up in food chain

More resistant to pests and diseases

Nitrates, phosphates, potassium