1. Unit 5 Natural Resources – Chapter 13 Water Resources – Chapter 14
Food & Agriculture
Water Resources – Chapter 14
Uses
Availability
Mineral Resources – Chapter 15
Mining
Ore deposits

2. Food Resources

3. Key Concepts Methods of food production Increasing food production
Farming techniques
Pesticide & herbicide usage
Irrigation
Livestock Production
Increasing food production
Biotechnology
Environmental effects
Soil degradation
Water deficits & droughts
Loss of cropland

4. Sustainability
Less pesticides
Low-input farming techniques

5. Human Dietary Requirements
Ave. healthy male – 2500 cal/day; Ave. healthy female – 2000 cal/day
Proper nutrition – balanced intake of protein, carbohydrates, fat, and water
Protein: produces 4 cal energy/g; 30%
Carbohydrate: 4 cal energy/g; 60%
Fats: 9 cal energy/g; 10%

7. Food Production Facts 15 plant & 8 animal species
2/3 world live primarily on grains
20% world’s riches countries consume 80% of world’s meat
90% grain grown in US is animal feed
16 lbs grain = 1 lb of edible meat
11 million children die from starvation/yr
850 million are malnourished

8. Chronic undernourishment + vitamin and/or mineral deficiencies equals:
Stunted growth
Weakness
Increase susceptibility to illness

9. Malnutrition vs. Undernutrition
Improper or insufficient diet
May result in starvation, disease, diminished mental abilities and/or infection
Undernutrition
Not getting enough to eat
Overnutrition
Eating too much
Not necessarily balanced

12. Diseases Resulting from Malnutrition
Scurvy – lack of vitamin C
Pellagra – niacin deficiency (lack of protein)
Beriberi – thiamin (b1 deficiency); consuming processed rice
Goiter – lack of iodine
Rickets – lack of vitamin D; lack of dairy
Kwashiorkor – lack of adequate protein

13. Golden Rice World’s poor lack money and land
Africa & So. East Asia – vitamin A deficiency
1999 Potrykus & Beyer
Golden rice
Genetically engineered (transgenic)
Contains beta-carotene
2 genes common daffodils & 1 soil bacterium to conventional rice

15. Pros
Dk green leafy vegetables, sweet potatoes & mangos too expensive to grow or buy
Vitamin A capsules too costly
Cheap way of getting yellow beta-carotene into the diet of the poor
Eating grams/day should provide enough vitamin A to prevent blindness

16. Cons
Drawing funding & attention away from quicker and cheaper programs
Can poor afford golden rice
Not enough scientific information on how much beta-carotene is actually converted into vitamin A in the body

17. World Problems & Challenges
Increasing population
Poverty
Providing & distributing enough food
Food security
People have access to enough food at all times
Doing so in an environmentally sustainable way
Does not deplete or degrade soil & water resources that are needed to produce the food