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environmental scienc
9-weeks test (3-2-15)
| 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 |
Created by:
a.allsup
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