Question | Answer |
What is the Green revolution? | a period when the productivity of global agriculture increased drastically as a result of new advances. |
What 3 major changes came about as the result of the Green revolution? | 1. monoculture, 2. highly bred or generally modified strains of plants, 3. Increased irrigation fertilization, and application of herbicides and pesticides |
definition of infant mortality | death rate in newborns |
define exponential growth | occurs when the population size and its rate of growth both increase |
Characteristics of developed and developing countries | developing: low income, lower life span, higher population growth
developed: high income, higher life span, lower population growth |
pronatalist | want children |
antinatalist | does not want children |
What are the pressures associated with pronatalist and antinatalist | pronatalist - societal thing, extra income, support from kids when parents are older;
antinatalist - jobs, expenses from kids |
What is the difference between emigration and immigration? | emigration is the act of leaving ones native country to live in another,
immigration is the movement of people from one state/nation to another but implies long-term permanent residence |
what is a non transmissible disease? Give an example | a disease spread by heredity, EX: heart disease, cancer |
What are two characteristics of an emergent disease? | reappeared after being gone for years, 1. no one would have any resistance to it and 2. there would be no available drugs to treat it. |
What types of diseases do antibiotics treat? | bacterial infections |
What are some misuses of antibiotics that give resistance? | 1. not finishing the prescription, 2. using it when not needed |
What does LD50 mean? | Lethal does to 50% of the population |
What were the two main causes of the dust bowl? | 1. overplanting due to increase in precipitation, 2. wearing out the soil, using the same crops |
List 3 major food staples | core, wheat, and rice |
Name what nutrient is missing and what the symptoms are: Anemia and Goiter | Anemia - lack of iron in the blood, always tired, lack of oxygen in the blood.
Goiter - lack of iodine, enlargement of the thyroid gland (neck) |
Tell the difference between organic and inorganic fertilizers | inorganic - synthetically made from mixed minerals,
organic - derived from plant and animal matter |
What does GMO stand for? Give one example | Genetically Modified Organism; soybean |
List two reasons why the clean 15 are labeled as such | 1. They have thicker skin that protects them, 2. people do not eat the skin of these |