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DSST Environmental Science: Land Use

Subjects : dsst, science
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Strip mining - open pit mining - mountain top removal






2. Systematically tests different approaches and aims to improve methods and find ideal over time - Advantages: can be highly effective; works with each specific environment; can protect species; can provide minimum impact - Disadvantages: difficult to






3. Nicotine - Alcohol - Cocaine - if it can kill you - it can kill other living things.






4. Corn yield has increased dramatically in the US since the 1920s because it was in the 1920s that GM corn started to be developed






5. The surface soil that must be moved away to get at coal seams and mineral deposits






6. Cheap - But - removes all overburden (trees - soil - rocks - etc.); obliterates natural communities b/c everything has been removed; leads to erosion; causes sulfuric acid run-off;






7. Choosing valuable trees only - lots of reseeding - transportation is hard.






8. - the turning and loosening of soil for the planting of crops






9. Organic macromolecules hardest to provide during a famine






10. By far the best method for managing pests - Uses chemical pesticides - biocontrol - AND diversity - Not monoculture; things are planted in a mosaic so that if pests attack all of the corn in one area there is still more corn somewhere else - Proven t






11. When sulfide minerals in newly exposed rock surfaces react with oxygen and rainwater to produce sulfuric acid - causing runoff as it leaches metals from the rocks






12. Heating ore beyond its melting point and combining it with other metals or chemicals ( process of separating).






13. The uniform planting of a single crop






14. (Insecticides - Herbicides/ Fungicides) - Artificial chemicals used to kill pests/ insects/plants/fungi






15. Educational - Maintain biodiversity - Aesthetics - Oxygen - Improve quality of life - Co2 to O2 - Shade - Habitat/ biodiversity - Erosion - Clean water - Soil enrichment






16. A naturally occurring solid element or inorganic compound with a crystal structure - a specific chemical composition - and distinct physical properties.






17. A severe shortage of food (as through crop failure) resulting in violent hunger and starvation and death






18. Makes money - remove resources from its original location - Firewood - Paper - Lumber - Charocoal - Gem - Hunting - Medicine






19. In the last 100 years - humans have doubled the amount of organic nitrogen in the biosphere by artificial synthesis of ammonia.






20. Food assistance given to an area. Can take away the incentive to produce food in that area. Distribution is an issue.






21. A single piece of land gardened collectively by a group of people.






22. Manages resource harvesting so as to minimize impact on ecosystem and ecological processes that provide the resource - Advantages: can protect certain areas; can restore habitats; considers surroundings; allows timber harvesting while preserving inte






23. Controversial logging practice where all trees in an area are uniformly cut down - used by foresters to create certain types of forest ecosystems and to promote select species that requires an abudnace of sunlight or grow in large - even--age stands






24. way to enhance nutrient-limited soils - Inorganic fertilizers- mined or synthetically manufactured mineral supplements - Organic fertilizers consist of the remains or wastes of organisms that include animal mancure - organic fertilizers can improve






25. More expensive then clear cutting - leaves rows of trees for reseeding/ future harvesting.






26. Malachite contains sulfides which become strongly acidic when mixed with water and thus pollutes water






27. Goal to guarantee an adequate - safe - nutritious - and reliable food supply available to all people at all times






28. Foods derived from genetically modified organisms. Genetically modified organisms have had specific changes introduced into their DNA by genetic engineering techniques. include selective breeding; plant breeding. Typically - genetically modified food






29. Genetically engineered using recombinant DNA






30. Completely missing something acquired from food; usually protein or vitamin C






31. Solid waste from smelts






32. Long term information is unknown - Can take over surrounding ecosystem - Pest-killing toxin also kills insects that should not and are not meant to be killed such as monarch butterflies - Pollen can be carried to nearby plants by wind thus making th






33. There is now more nitrate in the soil and water than ever - sometimes at unsafe levels - Corn harvests have improved






34. Mining method- mining underground coal deposits - in which shafts are dug deeply into the ground and networks of tunnels are dug to follow coal seams.






35. The use of heavy machinery to remove huge amounts of earth to expose COAL or MINERALS - which are mined out directly.






36. Now makes up 80% of corn in the US - Benefits: Contains naturally occurring pesticide - Increases production - could feed more people - Grow more per square area - Doesn't spoil as quickly - Bigger - tastier






37. Uses the idea that 'the enemy of one's enemy is one's friend' - Battles pests and weeds with organisms that eat or infect them - Can be extremely effective and inexpensive






38. Technology was not able to profitably remove the copper from the malachite






39. Worthless material that surrounds a wanted mineral in an ore deposit.






40. Soy beans have been genetically modified for better traits. 'Round up Ready' soy beans have made it so that weed killer 'round up' can be sprayed around the plants and kill all the weeds but not the soy bean plants. 'round up ready soy beans' were cr






41. A mining technique that involves digging a gigantic hole and removing the desire ORE - along with waste rock that surrounds the ore.






42. Mix the malachite with water and 6M sulfuric acid and heat the mixture - creating a transformation reaction where the only left over matter is the sand - which is then strained out. Iron fillings are then added to the solution - a substitution react






43. Technology that has vastly increased the amount of food production since the agricultural revolution; currently 1 farmer for every 129 eaters






44. The FSC (Forest Stewardship Council) examine the practices of firms and rate them against criteria for sustainability - Grant sustainable forest certification to forests - companies - and products produced using methods they consider sustainable.






45. Mining method- mountain's forests are clear-cut and the timber is sold - topsoild is removed - and then the rock is blasted away to expose the coal for extraction. Overburden is placed back on the mountaintop. Primarily for coal in the Appalachian Mo






46. Advantages: removes the least amount of unwanted material so less waste - Disadvantages: potential collapse; sinkholes; acid drainage; pollutes groundwater; risk of injury/death from dynamite blasts - natural gas explosions - inhalation of toxic gass






47. Bio-control can be extremely cost effect - Bio-control can harm other animals - The cane toads control cane beetle in Carribean






48. Not enough of some vitamin/mineral/essential thing in food






49. 1990 Clean Air Act amendments encouraged clean-burning low-sulfur coal led to more mining in Appalachia -dumping ton of debris sinto valley degrades and destroys areas of habitat -social and health impacts. loose rock tumbles down into homes - overl






50. Maximum Sustainable Yield - Ecosystem-based Management - Adaptive Management