Plant Agriculture Test Review Questions And Correct Answers| Guaranteed Pass.

soil - correct answers a mixture of minerals and partially decomposed organic matter. erosion - correct answers the gradual break down of rock row crops - correct answers grown in spaced rows cover crops - correct answers trap any soil that erodes same as strip cropping windbreaks - correct answers rows of trees along the edge of farms to block the wind. undernutrition - correct answers the result of a diet that does not meet an individuals basic energy calorie requirement of 1000 calories. malnutrition - correct answers a person with a diet who lacks in specific micro and macro nutrients. famine - correct answers under nourshiment over an entire population irrigation - correct answers the number one largest single share of global water use which gets water to the crops. efficiency (water) - correct answers the percent of the amount of water that actually makes it to the roots pesticides - correct answers to prevent pests or kill them. bioaccumulation - correct answers forming higher and higher concentrations in organisms over a long period of exposure. organic foods - correct answers produced by compost normally without any synthetic pesticides or fertilizers. What kind of ecosystem was in the western united states that the early European settlers refer to as a desert? - correct answers hortgrass prairie from the Eastern Rockies through Nebraska in USA. Why was it so difficult to farm in the western Great Plains? - correct answers cast iron plow would get caked in the clay and soil Explain the rain follows the plow theory. - correct answers believed that this wet period was actually a result of increased farming so it was therefore encouraged. what are the 3 major food staples? - correct answers sugar cane maize rice how does all soil begin? - correct answers as rock What are the two ways rock can be broken down? - correct answers mechanical and chemical erosion mechanical erosion - correct answers is the physically breaking down of rock by wind and water. chemical erosion - correct answers changes the molecular structure, having to do with acidity. o horizon - correct answers mostly non decomposed plant liter. a horizon - correct answers contains a lot of organic material mixed with some minerals. This is top soil. b horizon - correct answers layer of clay mostly made up of minerals with little organic matter. why is grassland so ideal for farming compared to forest soil? - correct answers The grassland has a deep A horizon. rank the four different types of water erosion by strength starting with the least severe. - correct answerssplash erosion sheet erosion rill erosion gully erosion type of erosion that is more likely to occur in arid areas behind the Midwest United States dust storms of the 1930s - correct answerswind erosion contour plowing - correct answerscrops are planted along the slope or contours of the land rather than straight up and down. strip cropping - correct answersalternates row crops like corn and cotton with cover crops like oat that completely cover the soil to prevent splash erosion. terracing - correct answersconverts steeply sloped land into a series of flattened terraces that is done on a steep hill side. The stair step structure slows down water and prevents rill and gully erosion. What are the 3 macro nutrients? - correct answerscarbohydrates lipids proteins which macronutrient has the most calories? - correct answersLipids what nutrient is missing to cause kwashiorkor? - correct answersprotein what nutrient is missing to cause anemia? - correct answersiron what nutrient is missing to cause goiter? - correct answersiodine What did most farmers practice before the green revolution? - correct answerssubsistence agriculture What do most farmers practice today? - correct answersmonoculturing monoculturing - correct answersonly a few commercially valuable crops grown. subsistence agriculture - correct answersproduced to support a family. How does furrow irrigation work? - correct answersdelivers large amounts of water through small parallel channels that run through the field. How does drip irrigation work? - correct answersuse poreous tubes above or below ground that gradually delivers water to the roots of individual plants. How does center pivot irrigation work? - correct answersthe most commonly used irrigation method that involves a piece of equipment that rotates around a single point, creating a circle shaped irrigation field Efficiency of furrow irrigation. - correct answers40%-60% Efficiency of drip irrigation. - correct answers90%-95% Efficiency of center pivot irrigation. - correct answers80% Inorganic fertilizer - correct answerssynthetically made from mined minerals Organic fertilizer - correct answersanimal and plant matter 1st generation pesticides - correct answersnatural chemicals extracted don't last long 1600s used on organic farms today What level of a food chain is most affected by bioaccumulation? - correct answerstop What is the Dirty Dozen? - correct answersa list of produce that is more likely to have pesticide residue List 3 dirty dozen fruits. - correct answersapples strawberries grapes the "dirty dozen" is a list of produce that is more likely to have pesticide residue. What do these fruits and vegetables have in common? - correct answersthe "dirty dozen" are more likely to absorb and retain pesticides. What strategies will farmers who use Integrated pest management systems use first? - correct answersnatural predators Explain how round up ready corn is a GMO. - correct answersresistant to a glyphosate. The herbicide is sprayed onto a field, killing undesired weeds, but leaving the corn. a diet low in _____ will result in the disorder _____ which reduces the ability of the body to transport oxygen through the blood. - correct answersiron, anemia most farmers today use synthetic ______ pesticides and herbicides (such as Round-up) to control their biological pests. the problem with these chemicals is that they ____ in the environment. - correct answers2nd generation, persist farms that grow organic crops are not allowed to use - correct answers synthetic pesticides fertilizer is added to the soil to replenish what 3 nutrients? - correct answers nitrogen, phosphorus and potassium An example of a legume (nitrogen fixer) - correct answers soybeans What are three changes that occurred during the Green Revolution? - correct answers highly bred crops, irrigation, use of synthetic fertilizers and pesticides