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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. 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






2. 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;






3. Genetically engineered using recombinant DNA






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






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






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






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






8. 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






9. One farmer=100 eaters.






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






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






12. 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






13. 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.






14. Strip mining - open pit mining - mountain top removal






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






16. 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






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






18. Completely missing something






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






20. -boosts yields by intensifying irrigation and introducing synthetic fertilizers - while the advent of chemical pesticides reduce competition from weeds and herbivory by crop pests - Industrial agriculture works best under the condition of monoculture






21. 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.






22. Can hurt other species - methods used to control other species can become invasive species themselves - Ex. Australia released a virus to kill the excessive rabbits; Australians brought in cane toads to kill beetles on their sugar cane - BUT the toa






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






24. 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






25. Do not naturally occur in the environment - but are synthesized by man. Since all these compounds have carbon and hydrogen atoms as the basis of their molecule (as do living plants and animals) - they are referred to as organic compounds to form pest






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






27. Clear cutting - Strip cutting - selective cutting






28. Organic macromolecules hardest to provide during a famine






29. 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






30. Cheapest - easiest transportation removal of lumber - Most environmentally harmful - takes all trees - leaves nothing






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






32. Natural fertilizers from decomposing solid organic matter; have lots of nitrogen






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






34. 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






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






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






37. Shafts are excavated deep into the ground - and networks of tunnels are dug or blasted out to follow deposits of the mineral. requires removal of the overburden - Used for metals ( zinc - lead - nickel - tin - gold - copper) and coal - Most dangerous






38. 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






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






40. 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






41. Having not enough of something






42. The uniform planting of a single crop






43. Recycle batteries - Send large amounts of metal to scrap yards/businesses instead of to landfills (ex. cars - fridges - dishwashers - etc.) - Recycle old electronics like phones and computers to prevent more mining of minerals like tantalum that are






44. Locally-based socio-economic model of agriculture and food distribution. also refers to a particular network or association of individuals who have pledged to support one or more local farms - with growers and consumers sharing the risks and benefits






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






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






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






49. A fossil fuel composed of organic matter that was compressed under very high pressure to form a dense - solid carbon structure.






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