Flashcards in October 19 Deck (26):
65% of under nourished people reside in _______
In decrees sing hungry people what two areas have made a lot of progress?
Latin America and the Caribbean
How many people are clinically obese?
What percentage of food is wasted?
50% of food waste occurs in the _____.
Population increase is occurring in countries with _______ food
How does climate affect food production?
Temperature is a limiting factor
Per trophic level what percentage of energy is lost?
What has more energy meat or vegetables?
True or false
Livestock takes up 1/2 of land mass
What is a locavore?
A person who only eats locally grown foods
What are biofuels?
Recently deceased plants and animals
What did the green revolution do?
Increased food productivity by using hybridization and auxillary energy forms
What is hybridization?
Cross breeding the best characteristics of a crop to have a better yield
What is auxillary energy?
Fertilizers and biocides
What three crops benefited most from the green revolution?
What effect does the green revolution have on soil?
Depletes the nutrients faster creating nutrient deficient soils that cannot sustain crops
The amount of hungry people in the world is _________.
What three things lead to land degradation?
Shorter crop shifts
What are some downsides of hybridized crops?
Mass disease will wipe out entire crop
Crop is expensive
What are four types of biocides?
What are 7 challenges with biocides?
Non selective predictor prey control
What is bio magnification of biocides?
The chemical moving up the food chain and increasing its concentration
What is bioconcentration?
True or false
Biocides kill all pests desired.
False, some will be immune and they are the ones that repopulate creating a mutation that is not affected by the biocides