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DSST Environmental Science: Land Use

Subjects : dsst, science
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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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. 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

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

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

4. The uniform planting of a single crop

5. 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

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

7. 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

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

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

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

11. 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

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

13. About one million people on Earth 10 -000 years ago. (The Agricultural revolution). Worlds population crossed into 7 billion now - It is unlikely that we will double the 7 billion. We will hit 9 to 11 billion people.

14. Clear cutting - Strip cutting - selective cutting

15. 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

16. 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

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

18. Completely missing something

19. -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

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

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

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

23. Harvesting only mature trees of certain species and size; usually more expensive then clear-cutting but it is less disruptive for wildlife and often better for forest regeneration

24. 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

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

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

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

28. 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.

29. 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

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

31. Solid waste from smelts

32. Organic macromolecules hardest to provide during a famine

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

34. 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

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

36. 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

37. 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.

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

39. Combination of different pest management techniques combined in a specific way best for the place they are being used.

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

41. 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;

42. Having not enough of something

43. 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

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

45. A mineral or grouping of minerals from which we extract metals - most metals are found in ore - Copper - iron - lead gold - and aluminum - Used in electronic components of computers - cell phones - DVD players.

46. Cut trees shortly after they go through their fastest stage of growth (which is during their intermediate age) - Advantages: maximizes timber production over time - Disadvantages: trees get cut before they mature; alters forest ecology; eliminates ha

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

48. 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

49. Genetically engineered using recombinant DNA

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