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
Ecosystem-based Management
Malnourishment
Things people can do to avoid depleting minerals
Effect of Monsanto on soybean farming since 1994
2. Technology that has vastly increased the amount of food production since the agricultural revolution; currently 1 farmer for every 129 eaters
Costs and downsides of purifying malachite
Community supported agriculture (CSA)
Malnourishment
Mechanization/tractors/combines
3. Food assistance given to an area. Can take away the incentive to produce food in that area. Distribution is an issue.
Ore
Pesticides
Food Aid
Ecosystem-based Management
4. In the last 100 years - humans have doubled the amount of organic nitrogen in the biosphere by artificial synthesis of ammonia.
Acid mine drainage
Effect of Monsanto on soybean farming since 1994
Manmade nitrogen fertilizers
Current Population/ 2100 projects of world population
5. 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
Sustainable Forestry
Agricultural revolution and technology
Minerals
Manure/compost
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
Subsurface mining
Pest management
Strip mine
Acid mine drainage
7. 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.
Clear cutting
Community garden
Sustainable Forestry
Monoculture
8. There is now more nitrate in the soil and water than ever - sometimes at unsafe levels - Corn harvests have improved
Effect of man made fertilizer on the amount of nitrate in the soil and water from 100 years ago
Selective Cutting
Naturally occurring pesticides
Acid mine drainage
9. Maximum Sustainable Yield - Ecosystem-based Management - Adaptive Management
Artificial Organic compounds
Manmade nitrogen ertilizers
What we can do to make forestry more sustainable
Surface Mining Control and Reclamation Act of 1977
10. 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
Subsurface mining
Ecosystem-based Management
Types of surface mining
Things people can do to avoid depleting minerals
11. (Insecticides - Herbicides/ Fungicides) - Artificial chemicals used to kill pests/ insects/plants/fungi
Community garden
Mechanization/tractors/combines
Pesticides
Effect of man made fertilizer on the amount of nitrate in the soil and water from 100 years ago
12. Combination of different pest management techniques combined in a specific way best for the place they are being used.
Integrated Pest Management (IPM)
Pesticides
Undernourishment
Minerals
13. A single piece of land gardened collectively by a group of people.
Industrial Agriculture/ Factory Farming
Surface Mining Control and Reclamation Act of 1977
Community garden
Surface mining
14. More expensive then clear cutting - leaves rows of trees for reseeding/ future harvesting.
Advantages & Disadvantages of Subsurface mining
To purify copper from malachite
Strip Cutting
Mountain-Top Removal
15. 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
Advantages & Disadvantages of Subsurface mining
Things people can do to avoid depleting minerals
Surface Mining Control and Reclamation Act of 1977
Slash and Burn
16. A mining technique that involves digging a gigantic hole and removing the desire ORE - along with waste rock that surrounds the ore.
Mechanization/tractors/combines
To purify copper from malachite
Undernourishment
Open pit mine
17. The uniform planting of a single crop
Tailings/ Gangue
Plowing
Open pit mine
Monoculture
18. 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
Food Aid
Ecosystem-based Management
Integrated Pest Management (IPM)
Community supported agriculture (CSA)
19. A severe shortage of food (as through crop failure) resulting in violent hunger and starvation and death
Pesticides
Sustainable Forestry
Integrated Pest Management (IPM)
Famine
20. 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
Why malachite was originally left behind as tailing from copper mines
Adaptive Management
What we can do to make forestry more sustainable
Food Aid
21. Worthless material that surrounds a wanted mineral in an ore deposit.
Tailings/ Gangue
Overburden
Plowing
Artificial Organic compounds
22. Malachite contains sulfides which become strongly acidic when mixed with water and thus pollutes water
Undernourishment/Marasmus
Biological Control
Clear-cutting
Costs and downsides of purifying malachite
23. Strip mining - open pit mining - mountain top removal
Things people can do to avoid depleting minerals
Food Aid
Types of surface mining
Advantages & Disadvantages of surface mining
24. Technology was not able to profitably remove the copper from the malachite
Ecosystem-based Management
Why malachite was originally left behind as tailing from copper mines
Biological Control
Acid mine drainage
25. 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
Fertilizers
Subsurface mining
Types of surface mining
26. 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
Selective Cutting
Malnourishment
Ecosystem-based Management
Dangers of Biological control
27. 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
Coal
Ecological services
Things people can do to avoid depleting minerals
Clear-cutting
28. 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.
Advantages & Disadvantages of surface mining
Types of surface mining
Nitrate
Slash and Burn
29. One farmer=100 eaters.
Ore
Acid mine drainage
Lesson from Food Inc
Clear cutting
30. Completely missing something
Malnourishment
Tailings/ Gangue
Community supported agriculture (CSA)
Pesticides
31. 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
Industrial Agriculture/ Factory Farming
To purify copper from malachite
Clear-cutting
32. Corn yield has increased dramatically in the US since the 1920s because it was in the 1920s that GM corn started to be developed
How corn yield has changed in the United States since the 1920s
Genetically Modified foods
Industrial Agriculture/ Factory Farming
Malnourishment
33. 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.
Ore
What we can do to make forestry more sustainable
Surface Mining Control and Reclamation Act of 1977
Manmade nitrogen fertilizers
34. 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
Pest management
Artificial Organic compounds
Community supported agriculture (CSA)
Effect of Monsanto on soybean farming since 1994
35. 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
Overburden
Advantages & Disadvantages of surface mining
Mechanization/tractors/combines
Genetically Modified foods
36. 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
Strip cutting
Manmade nitrogen fertilizers
Manure/compost
Economic services
37. Organic macromolecules hardest to provide during a famine
Biological control (alternative to pesticides)
Protein (usually)
How corn yield has changed in the United States since the 1920s
Plowing
38. 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
Naturally occurring pesticides
Acid mine drainage
Smelting
Clear-cutting
39. The use of heavy machinery to remove huge amounts of earth to expose COAL or MINERALS - which are mined out directly.
Strip mine
Undernourishment
Minerals
Surface mining
40. The surface soil that must be moved away to get at coal seams and mineral deposits
Agricultural revolution and technology
Costs and downsides of purifying malachite
Overburden
Acid mine drainage
41. Nicotine - Alcohol - Cocaine - if it can kill you - it can kill other living things.
Naturally occurring pesticides
Slash and Burn
Tailings/ Gangue
Genetically Modified foods
42. 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.
Manure/compost
Why malachite was originally left behind as tailing from copper mines
Strip Cutting
Ore
43. Genetically engineered using recombinant DNA
Surface mining
Coal
Things people can do to avoid depleting minerals
Genetically modified food
44. A naturally occurring solid element or inorganic compound with a crystal structure - a specific chemical composition - and distinct physical properties.
Maximum Sustainable Yield
Lesson from Food Inc
Effect of man made fertilizer on the amount of nitrate in the soil and water from 100 years ago
Minerals
45. Having not enough of something
Monoculture
Undernourishment
Manmade nitrogen fertilizers
Pesticides
46. 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
Monoculture
Biological Control
Community supported agriculture (CSA)
Things people can do to avoid depleting minerals
47. 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;
Smelting
Types of forestry
Advantages & Disadvantages of surface mining
Strip Cutting
48. Makes money - remove resources from its original location - Firewood - Paper - Lumber - Charocoal - Gem - Hunting - Medicine
Dangers of Biological control
Current Population/ 2100 projects of world population
Clear-cutting
Economic services
49. 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
Effect of man made fertilizer on the amount of nitrate in the soil and water from 100 years ago
Lesson from Food Inc
Ore
50. Not enough of some vitamin/mineral/essential thing in food
Strip Cutting
Undernourishment/Marasmus
Impact of Mountain-Top Removal
Undernourishment