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Test your basic knowledge |
DSST Environmental Science: Land Use
Start Test
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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. Cutting the trees down - burning them. Nutrients from the ash go to soil. You have a farmland for ranching cattle or farming soybeans.
Slash and Burn
Manmade nitrogen fertilizers
Naturally occurring pesticides
Genetically Modified foods
2. Cheapest - easiest transportation removal of lumber - Most environmentally harmful - takes all trees - leaves nothing
Protein (usually)
Food Aid
Clear cutting
Coal
3. 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
Current Population/ 2100 projects of world population
Pest management
Artificial Organic compounds
Subsurface mining
4. 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
Tailings/ Gangue
Community garden
Risks of Bt Corn
Adaptive Management
5. The uniform planting of a single crop
Bt Corn
Famine
Strip cutting
Monoculture
6. 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
Types of surface mining
What we can do to make forestry more sustainable
Advantages & Disadvantages of Subsurface mining
Pest management
7. 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
Slag
Strip cutting
Sustainable Forestry
Genetically Modified foods
8. 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
Bt Corn
Community supported agriculture (CSA)
Current Population/ 2100 projects of world population
Pesticides
9. 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
Strip cutting
Acid mine drainage
Fertilizers
Undernourishment
10. Natural fertilizers from decomposing solid organic matter; have lots of nitrogen
Costs and downsides of purifying malachite
Manure/compost
Advantages & Disadvantages of Subsurface mining
Protein (usually)
11. Made by mixing the remains or wastes of organisms including animal manure (essential) - crop residues - fresh vegetation - and compost
Subsurface mining
Famine
Manmade nitrogen ertilizers
Food security
12. -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
Manmade nitrogen ertilizers
Industrial Agriculture/ Factory Farming
Effect of man made fertilizer on the amount of nitrate in the soil and water from 100 years ago
Lesson from Food Inc
13. (Insecticides - Herbicides/ Fungicides) - Artificial chemicals used to kill pests/ insects/plants/fungi
Biological control (alternative to pesticides)
Pesticides
Costs and downsides of purifying malachite
Industrial Agriculture/ Factory Farming
14. 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
Clear-cutting
Naturally occurring pesticides
Open pit mine
Biological Control
15. Maximum Sustainable Yield - Ecosystem-based Management - Adaptive Management
Manmade nitrogen fertilizers
What we can do to make forestry more sustainable
Clear cutting
Sustainable Forestry
16. 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
Fertilizers
Protein (usually)
Selective cutting
Impact of Mountain-Top Removal
17. Solid waste from smelts
Types of forestry
Agricultural revolution and technology
Slag
Things people can do to avoid depleting minerals
18. Bio-control can be extremely cost effect - Bio-control can harm other animals - The cane toads control cane beetle in Carribean
Pest management
Biological control (alternative to pesticides)
Things people can do to avoid depleting minerals
Biological Control
19. 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
Minerals
Biological control (alternative to pesticides)
To purify copper from malachite
Famine
20. Genetically engineered using recombinant DNA
Nitrate
Surface mining
Fertilizers
Genetically modified food
21. Educational - Maintain biodiversity - Aesthetics - Oxygen - Improve quality of life - Co2 to O2 - Shade - Habitat/ biodiversity - Erosion - Clean water - Soil enrichment
Ecological services
Nitrate
Why malachite was originally left behind as tailing from copper mines
Pest management
22. Not enough of some vitamin/mineral/essential thing in food
Ecological services
Undernourishment/Marasmus
Artificial Organic compounds
Slag
23. 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
Dangers of Biological control
Nitrate
Integrated Pest Management (IPM)
Undernourishment/Marasmus
24. A variation of clear-cutting in which a strip of trees is clear-cut along the contour of the land - with the corridor narrow enough to allow natural regeneration within a few years. After regeneration - another strip is cut above the first - and so o
Plowing
Strip cutting
Lesson from Food Inc
Selective Cutting
25. 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.
Ore
Advantages & Disadvantages of Subsurface mining
Industrial Agriculture/ Factory Farming
Slash and Burn
26. 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
Bt Corn
Undernourishment/Marasmus
Strip Cutting
Impact of Mountain-Top Removal
27. 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;
Advantages & Disadvantages of surface mining
Undernourishment
Food Aid
Effect of man made fertilizer on the amount of nitrate in the soil and water from 100 years ago
28. 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
How corn yield has changed in the United States since the 1920s
Surface mining
Surface Mining Control and Reclamation Act of 1977
Agricultural revolution and technology
29. There is now more nitrate in the soil and water than ever - sometimes at unsafe levels - Corn harvests have improved
Current Population/ 2100 projects of world population
Acid mine drainage
Effect of man made fertilizer on the amount of nitrate in the soil and water from 100 years ago
Community garden
30. To reclaim is to make things level - and to get something growing and prevent erosion - If the U.S were to try to reclaim - it would cost tax payers about 2 trillion dollars.
Food Aid
Surface Mining Control and Reclamation Act of 1977
Costs and downsides of purifying malachite
What we can do to make forestry more sustainable
31. Organic macromolecules hardest to provide during a famine
Protein (usually)
Plowing
Manmade nitrogen ertilizers
Malnourishment/Kwashiorkor
32. In the last 100 years - humans have doubled the amount of organic nitrogen in the biosphere by artificial synthesis of ammonia.
Manmade nitrogen fertilizers
Advantages & Disadvantages of Subsurface mining
Clear cutting
Open pit mine
33. Makes money - remove resources from its original location - Firewood - Paper - Lumber - Charocoal - Gem - Hunting - Medicine
Economic services
Things people can do to avoid depleting minerals
Costs and downsides of purifying malachite
Impact of Mountain-Top Removal
34. 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
Types of surface mining
Strip cutting
Ecological services
Effect of Monsanto on soybean farming since 1994
35. A single piece of land gardened collectively by a group of people.
Malnourishment/Kwashiorkor
Mechanization/tractors/combines
Community garden
Protein (usually)
36. The golden molecule for plants because it makes them grow - Leagues have special nitrogen fixing bacteria in their rhizomes (roots) - Three covalent bonds for N2. Stronger the covalent bonds - the harder it is to react. Nitrogen gas is inert.
Protein (usually)
Impact of Mountain-Top Removal
Nitrate
Manmade nitrogen fertilizers
37. Combination of different pest management techniques combined in a specific way best for the place they are being used.
Integrated Pest Management (IPM)
Clear cutting
Industrial Agriculture/ Factory Farming
Undernourishment
38. One farmer=100 eaters.
Undernourishment/Marasmus
Food Aid
Lesson from Food Inc
Strip Cutting
39. 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
Biological control (alternative to pesticides)
Effect of Monsanto on soybean farming since 1994
Selective cutting
Famine
40. 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
Subsurface mining
Sustainable Forestry
Current Population/ 2100 projects of world population
Mountain-Top Removal
41. - the turning and loosening of soil for the planting of crops
Artificial Organic compounds
Plowing
Slag
Surface mining
42. More expensive then clear cutting - leaves rows of trees for reseeding/ future harvesting.
Pest management
Strip Cutting
Slash and Burn
Smelting
43. Technology was not able to profitably remove the copper from the malachite
Why malachite was originally left behind as tailing from copper mines
Protein (usually)
Clear cutting
Effect of Monsanto on soybean farming since 1994
44. A severe shortage of food (as through crop failure) resulting in violent hunger and starvation and death
Naturally occurring pesticides
Famine
Slash and Burn
Strip cutting
45. 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
Agricultural revolution and technology
Pesticides
Clear-cutting
Advantages & Disadvantages of Subsurface mining
46. Completely missing something
Things people can do to avoid depleting minerals
Surface mining
Slag
Malnourishment
47. Food assistance given to an area. Can take away the incentive to produce food in that area. Distribution is an issue.
Acid mine drainage
Food Aid
Fertilizers
Nitrate
48. Heating ore beyond its melting point and combining it with other metals or chemicals ( process of separating).
Smelting
Sustainable Forestry
Bt Corn
Current Population/ 2100 projects of world population
49. Worthless material that surrounds a wanted mineral in an ore deposit.
Tailings/ Gangue
Ore
Effect of man made fertilizer on the amount of nitrate in the soil and water from 100 years ago
Biological Control
50. Fertilizers - promote plant growth by providing essential nutrients like nitrogen or phosphorus; increases crop yield - Combines/Machinery - allows farmers to work much faster and more efficiently; increases crop yield - Pesticides - kill insects - p
Fertilizers
Strip cutting
Open pit mine
Agricultural revolution and technology