Chapter 7 Flashcards
Natural disasters often instigate famines, but
Armed conflict and political oppression almost always play a role
Vitamin a deficiency’s are associated with
Retinal degeneration and blindness
Families are most often serious when there is
Drought and war together
The three crops that humans rely on for the majority of nutrients and calories are
Wheat, rice, and maze
What is the basis of the statement that we could feed more people if we would eat green rather than feeding it to livestock
The second law of thermodynamics
Bel Air of the soil that is a mixture of minerals and organic material is the
O horizon
The energy needed to produce and distribute food in the US is as much as blank times the amount that is used to actually formed the crops
Five times
Contour plowing and strip farming methods designed to
Prevents water and soil loss
USDA estimates blank percent of conventionally grown food are contaminated with pesticide residue
73%
What is the advantage of genetically modified crops?
All these are benefits to GMO’s
