SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
DSST Environmental Science: Land Use
Start Test
Study First
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. 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
Maximum Sustainable Yield
Ecological services
Adaptive Management
Effect of Monsanto on soybean farming since 1994
2. Makes money - remove resources from its original location - Firewood - Paper - Lumber - Charocoal - Gem - Hunting - Medicine
To purify copper from malachite
Mountain-Top Removal
Economic services
Minerals
3. A naturally occurring solid element or inorganic compound with a crystal structure - a specific chemical composition - and distinct physical properties.
How corn yield has changed in the United States since the 1920s
Naturally occurring pesticides
Minerals
Manmade nitrogen fertilizers
4. Natural fertilizers from decomposing solid organic matter; have lots of nitrogen
Mechanization/tractors/combines
Manure/compost
Why malachite was originally left behind as tailing from copper mines
Ore
5. A fossil fuel composed of organic matter that was compressed under very high pressure to form a dense - solid carbon structure.
Coal
Tailings/ Gangue
Slash and Burn
Ecological services
6. Nicotine - Alcohol - Cocaine - if it can kill you - it can kill other living things.
To purify copper from malachite
How corn yield has changed in the United States since the 1920s
Naturally occurring pesticides
Integrated Pest Management (IPM)
7. Heating ore beyond its melting point and combining it with other metals or chemicals ( process of separating).
Lesson from Food Inc
Smelting
Strip Cutting
Food security
8. Genetically engineered using recombinant DNA
Genetically modified food
Effect of Monsanto on soybean farming since 1994
Selective Cutting
Strip cutting
9. Organic macromolecules hardest to provide during a famine
Protein (usually)
Agricultural revolution and technology
Costs and downsides of purifying malachite
Selective cutting
10. Cutting the trees down - burning them. Nutrients from the ash go to soil. You have a farmland for ranching cattle or farming soybeans.
Clear-cutting
Industrial Agriculture/ Factory Farming
Undernourishment
Slash and Burn
11. 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.
Manure/compost
Sustainable Forestry
Food security
Manmade nitrogen ertilizers
12. Goal to guarantee an adequate - safe - nutritious - and reliable food supply available to all people at all times
Food security
Maximum Sustainable Yield
Plowing
Nitrate
13. Completely missing something
Selective Cutting
Manure/compost
Malnourishment
Mechanization/tractors/combines
14. 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
Monoculture
Acid mine drainage
Strip cutting
Strip mine
15. 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
Strip cutting
Selective Cutting
Smelting
To purify copper from malachite
16. The uniform planting of a single crop
Monoculture
Slag
Genetically modified food
Acid mine drainage
17. Completely missing something acquired from food; usually protein or vitamin C
Mechanization/tractors/combines
Malnourishment/Kwashiorkor
Effect of Monsanto on soybean farming since 1994
Community supported agriculture (CSA)
18. (Insecticides - Herbicides/ Fungicides) - Artificial chemicals used to kill pests/ insects/plants/fungi
Risks of Bt Corn
Dangers of Biological control
Pesticides
Malnourishment/Kwashiorkor
19. Strip mining - open pit mining - mountain top removal
Bt Corn
Types of surface mining
Ore
Strip mine
20. 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
Selective Cutting
Surface mining
Fertilizers
Biological Control
21. 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
Naturally occurring pesticides
Famine
Agricultural revolution and technology
Artificial Organic compounds
22. 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
Effect of man made fertilizer on the amount of nitrate in the soil and water from 100 years ago
Selective Cutting
Pest management
Ecological services
23. 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
Advantages & Disadvantages of surface mining
Strip cutting
Subsurface mining
Nitrate
24. 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)
Bt Corn
Ore
Dangers of Biological control
25. 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.
Current Population/ 2100 projects of world population
Costs and downsides of purifying malachite
Tailings/ Gangue
To purify copper from malachite
26. 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
Manmade nitrogen fertilizers
Economic services
Community supported agriculture (CSA)
Biological Control
27. 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
Manmade nitrogen ertilizers
Slag
Adaptive Management
Food Aid
28. The use of heavy machinery to remove huge amounts of earth to expose COAL or MINERALS - which are mined out directly.
Acid mine drainage
Ecosystem-based Management
Clear-cutting
Strip mine
29. In the last 100 years - humans have doubled the amount of organic nitrogen in the biosphere by artificial synthesis of ammonia.
Mechanization/tractors/combines
Bt Corn
Manmade nitrogen fertilizers
Advantages & Disadvantages of surface mining
30. 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
Overburden
Lesson from Food Inc
Acid mine drainage
Mountain-Top Removal
31. 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.
Strip cutting
Ore
Surface Mining Control and Reclamation Act of 1977
Strip Cutting
32. 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.
Undernourishment/Marasmus
Ore
Biological control (alternative to pesticides)
Naturally occurring pesticides
33. Technology was not able to profitably remove the copper from the malachite
Manure/compost
Food Aid
Why malachite was originally left behind as tailing from copper mines
Artificial Organic compounds
34. Choosing valuable trees only - lots of reseeding - transportation is hard.
Selective cutting
Costs and downsides of purifying malachite
Acid mine drainage
Sustainable Forestry
35. 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
Things people can do to avoid depleting minerals
Clear-cutting
Ecological services
Biological Control
36. Clear cutting - Strip cutting - selective cutting
Surface mining
Fertilizers
Advantages & Disadvantages of surface mining
Types of forestry
37. More expensive then clear cutting - leaves rows of trees for reseeding/ future harvesting.
Coal
Strip Cutting
Effect of man made fertilizer on the amount of nitrate in the soil and water from 100 years ago
Food Aid
38. Made by mixing the remains or wastes of organisms including animal manure (essential) - crop residues - fresh vegetation - and compost
To purify copper from malachite
Manmade nitrogen ertilizers
What we can do to make forestry more sustainable
Selective cutting
39. Solid waste from smelts
What we can do to make forestry more sustainable
Sustainable Forestry
Slag
Economic services
40. 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
Ecosystem-based Management
Genetically modified food
Subsurface mining
How corn yield has changed in the United States since the 1920s
41. 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
Food Aid
What we can do to make forestry more sustainable
Ecological services
Risks of Bt Corn
42. Educational - Maintain biodiversity - Aesthetics - Oxygen - Improve quality of life - Co2 to O2 - Shade - Habitat/ biodiversity - Erosion - Clean water - Soil enrichment
What we can do to make forestry more sustainable
Ecological services
Undernourishment
Strip cutting
43. One farmer=100 eaters.
Lesson from Food Inc
Minerals
Acid mine drainage
Manmade nitrogen ertilizers
44. The surface soil that must be moved away to get at coal seams and mineral deposits
Biological control (alternative to pesticides)
Strip Cutting
Overburden
Selective Cutting
45. 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
Food Aid
Bt Corn
Artificial Organic compounds
Smelting
46. Combination of different pest management techniques combined in a specific way best for the place they are being used.
Integrated Pest Management (IPM)
To purify copper from malachite
Effect of man made fertilizer on the amount of nitrate in the soil and water from 100 years ago
Slash and Burn
47. 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
Clear cutting
Selective Cutting
Acid mine drainage
Dangers of Biological control
48. 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
Ore
Food Aid
Slag
Agricultural revolution and technology
49. 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
How corn yield has changed in the United States since the 1920s
Mountain-Top Removal
Agricultural revolution and technology
Genetically Modified foods
50. There is now more nitrate in the soil and water than ever - sometimes at unsafe levels - Corn harvests have improved
Fertilizers
Genetically modified food
Effect of man made fertilizer on the amount of nitrate in the soil and water from 100 years ago
Mountain-Top Removal