- 7- Plant health depends on obtaining all of the essential inorganic nutrients
- 8- Connection: Fertilizers can help prevent nutrient deficiencies
- 9- Fertile soil supports plant growth
- 10- Connection: Soil conservation is essential to human life
- 11- Scientific Thinking: Organic farmers follow principles meant to promote health
- 12- Connection: Genetic engineering is improving the yields and nutritional values of crops