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environmental scienc
plant agriculture quiz 2-5-15
| Question | Answer |
|---|---|
| mixture of minerals and partially decomposed organic matter | soil |
| the physically breaking down of rock by wind and water | Mechanical erosion |
| changes the molecular structure | Chemical erosion |
| tiny crater caused by the impact of a single drop of water | splash erosion |
| transportation of loose soil particles along a flow of runoff water | sheet erosion |
| occurs when the flowing water coalesces into small channels | rill erosion |
| caused by rapidly flowing water creating deep channels in the ground (most severe) | gully erosion |
| grown in spaced rows | row crop |
| rows of (for example trees) reducing erosion by wind | windbreaks |
| result of a diet that does not meet an individuals basic calorie requirement | undernutrition |
| decrease in ability of blood to transport oxygen (lack of iron) | anemia |
| lack of proper nutrition, caused by not having enough to eat, not eating enough of the right things | malnutrition |
| application of water to soil | irrigation |
| how much water actually makes it to plants | efficiency |
| huge population undernourished | famine |
| synthetically made from mixed minerals | inorganic fertilizer |
| derived from plant and animal matter | organic fertilizer |
| chemicals that kill or control populations of these undesirable organisms | pesticides |
| forming higher and higher concentrations in organisms over a long period of exposure | bioaccumulate |
| any organism that destroys crops and interferes with crop structure | biological pests |
| produced without any synthetic pesticides or fertilizer | organic food |
| method of growing plants without the use of soil | hydroponics |
| implant of DNA into crops from other species that are resistant | GMO (Genetically Modified Organism) |
| vitamins and minerals | micronutrients |
| Know 3 things you took away from the Dust Bowl video |