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Chapter 15

Chapter 15. Food and Agriculture. Feeding the World. Famine – widespread starvation caused by shortage of food Malnutrition – when people don’t get enough Calories or eat sufficient variety of foods Major components – Carbohydrates, Lipids, and Proteins. What is diet?.

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Chapter 15

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  1. Chapter 15 Food and Agriculture

  2. Feeding the World • Famine – widespread starvation caused by shortage of food • Malnutrition – when people don’t get enough Calories or eat sufficient variety of foods • Major components – Carbohydrates, Lipids, and Proteins

  3. What is diet? • Type and amount of food he/she eats • Healthy diet has right balance of nutrients, minerals, and vitamins

  4. Green revolution • Started by Norman Bourlaug • Between 1950-1970 food production around world was increase substantially • New varieties of grains increased yields

  5. What is arable land? • Land that can be used to grow crops • Only 10% of Earth’s surface can be farmed

  6. What makes soil fertile? • Fungi and bacteria by decomposing dead plants and organic debris • Small animals break up soil by letting in air and water

  7. Key words to know: • Erosion • Desertification • Soil conservation • Compost • Salinization • Pesticides • Biological pest control

  8. How can genetic engineered corn help humans?

  9. What are livestock animals? • Ruminants? • Poultry? • Others?

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