The energy-rich compound needed by organism is : Carbohydrates
Carbohydrates consist of the combination of the existing Carbon, Hydrogen, and Oxygen alone.
For human, The source of carbohydrates could be found in almost every food, but the huge amount could be found in rice, potato, corn, cassava, oatmeal, etc
hope this helps
Answer:crop rotation efficient irrigation systems minimal use of fertilizers soil and water conservation
Heavy sedimentary items such as as rocks for example <span />
1. Healthy
2. Space
3. Recourses
4. Lower
5. Food supply
6. Increase
7. Emigration
