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. 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
Sustainable Forestry
Types of surface mining
Maximum Sustainable Yield
Manmade nitrogen ertilizers
2. A naturally occurring solid element or inorganic compound with a crystal structure - a specific chemical composition - and distinct physical properties.
Ecological services
Famine
Selective cutting
Minerals
3. 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
Pest management
Mechanization/tractors/combines
Ecosystem-based Management
How corn yield has changed in the United States since the 1920s
4. 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
Malnourishment
Ore
Genetically modified food
5. Makes money - remove resources from its original location - Firewood - Paper - Lumber - Charocoal - Gem - Hunting - Medicine
Current Population/ 2100 projects of world population
Open pit mine
Economic services
Ecosystem-based Management
6. Organic macromolecules hardest to provide during a famine
Selective Cutting
Pesticides
Protein (usually)
Slash and Burn
7. 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
Biological control (alternative to pesticides)
Industrial Agriculture/ Factory Farming
Surface mining
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
Clear-cutting
Open pit mine
Tailings/ Gangue
Types of forestry
9. Worthless material that surrounds a wanted mineral in an ore deposit.
Tailings/ Gangue
Malnourishment
Advantages & Disadvantages of Subsurface mining
Mechanization/tractors/combines
10. 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
What we can do to make forestry more sustainable
Ecosystem-based Management
Ore
Coal
11. - the turning and loosening of soil for the planting of crops
Integrated Pest Management (IPM)
Food security
Types of surface mining
Plowing
12. 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
Malnourishment/Kwashiorkor
Strip Cutting
Genetically Modified foods
Sustainable Forestry
13. 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
Pesticides
Mountain-Top Removal
Acid mine drainage
Ecosystem-based Management
14. Goal to guarantee an adequate - safe - nutritious - and reliable food supply available to all people at all times
Nitrate
Mountain-Top Removal
Strip cutting
Food security
15. Food assistance given to an area. Can take away the incentive to produce food in that area. Distribution is an issue.
Coal
Effect of man made fertilizer on the amount of nitrate in the soil and water from 100 years ago
Food Aid
Ecological services
16. 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
Adaptive Management
To purify copper from malachite
Effect of Monsanto on soybean farming since 1994
Food Aid
17. More expensive then clear cutting - leaves rows of trees for reseeding/ future harvesting.
Advantages & Disadvantages of surface mining
Strip Cutting
Open pit mine
Current Population/ 2100 projects of world population
18. 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.
Risks of Bt Corn
Subsurface mining
Coal
Fertilizers
19. Not enough of some vitamin/mineral/essential thing in food
Undernourishment/Marasmus
Strip Cutting
Strip mine
Genetically Modified foods
20. A mining technique that involves digging a gigantic hole and removing the desire ORE - along with waste rock that surrounds the ore.
What we can do to make forestry more sustainable
Costs and downsides of purifying malachite
Lesson from Food Inc
Open pit mine
21. 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.
Why malachite was originally left behind as tailing from copper mines
Ore
Nitrate
Strip Cutting
22. Having not enough of something
Advantages & Disadvantages of surface mining
Undernourishment
Advantages & Disadvantages of Subsurface mining
Food Aid
23. Cutting the trees down - burning them. Nutrients from the ash go to soil. You have a farmland for ranching cattle or farming soybeans.
Types of surface mining
Slash and Burn
Why malachite was originally left behind as tailing from copper mines
Advantages & Disadvantages of surface mining
24. There is now more nitrate in the soil and water than ever - sometimes at unsafe levels - Corn harvests have improved
Undernourishment
Effect of man made fertilizer on the amount of nitrate in the soil and water from 100 years ago
Coal
How corn yield has changed in the United States since the 1920s
25. Clear cutting - Strip cutting - selective cutting
Types of forestry
Ecological services
Strip cutting
Impact of Mountain-Top Removal
26. 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
Malnourishment/Kwashiorkor
Effect of Monsanto on soybean farming since 1994
Types of forestry
Selective cutting
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;
Acid mine drainage
Biological control (alternative to pesticides)
Maximum Sustainable Yield
Advantages & Disadvantages of surface mining
28. Nicotine - Alcohol - Cocaine - if it can kill you - it can kill other living things.
Acid mine drainage
Strip cutting
Naturally occurring pesticides
Tailings/ Gangue
29. (Insecticides - Herbicides/ Fungicides) - Artificial chemicals used to kill pests/ insects/plants/fungi
Pesticides
Costs and downsides of purifying malachite
Integrated Pest Management (IPM)
Economic services
30. Completely missing something
Malnourishment
Nitrate
Sustainable Forestry
To purify copper from malachite
31. The use of heavy machinery to remove huge amounts of earth to expose COAL or MINERALS - which are mined out directly.
Agricultural revolution and technology
Strip mine
Why malachite was originally left behind as tailing from copper mines
Ecological services
32. Malachite contains sulfides which become strongly acidic when mixed with water and thus pollutes water
Costs and downsides of purifying malachite
Manmade nitrogen fertilizers
Minerals
Ecosystem-based Management
33. Combination of different pest management techniques combined in a specific way best for the place they are being used.
Food Aid
Strip cutting
Protein (usually)
Integrated Pest Management (IPM)
34. Cheapest - easiest transportation removal of lumber - Most environmentally harmful - takes all trees - leaves nothing
Pesticides
Open pit mine
Impact of Mountain-Top Removal
Clear cutting
35. Heating ore beyond its melting point and combining it with other metals or chemicals ( process of separating).
Ore
Pest management
Smelting
Impact of Mountain-Top Removal
36. In the last 100 years - humans have doubled the amount of organic nitrogen in the biosphere by artificial synthesis of ammonia.
Impact of Mountain-Top Removal
Types of surface mining
Manmade nitrogen fertilizers
Genetically Modified foods
37. 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
Famine
How corn yield has changed in the United States since the 1920s
Manure/compost
Bt Corn
38. 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
Manure/compost
Plowing
What we can do to make forestry more sustainable
Things people can do to avoid depleting minerals
39. 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
How corn yield has changed in the United States since the 1920s
Pest management
Manure/compost
Dangers of Biological control
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
Industrial Agriculture/ Factory Farming
Ore
Types of surface mining
Biological control (alternative to pesticides)
41. 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.
Clear-cutting
Dangers of Biological control
Nitrate
Genetically Modified foods
42. 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
Manure/compost
Advantages & Disadvantages of Subsurface mining
Surface Mining Control and Reclamation Act of 1977
Undernourishment/Marasmus
43. A fossil fuel composed of organic matter that was compressed under very high pressure to form a dense - solid carbon structure.
Biological Control
Coal
Sustainable Forestry
How corn yield has changed in the United States since the 1920s
44. 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.
Minerals
Sustainable Forestry
Acid mine drainage
Fertilizers
45. A single piece of land gardened collectively by a group of people.
Manmade nitrogen ertilizers
Advantages & Disadvantages of Subsurface mining
Community garden
Food security
46. One farmer=100 eaters.
Undernourishment
Strip cutting
Lesson from Food Inc
What we can do to make forestry more sustainable
47. Technology that has vastly increased the amount of food production since the agricultural revolution; currently 1 farmer for every 129 eaters
Mechanization/tractors/combines
Genetically Modified foods
Ecological services
Bt Corn
48. -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
Costs and downsides of purifying malachite
Industrial Agriculture/ Factory Farming
Minerals
Biological control (alternative to pesticides)
49. Educational - Maintain biodiversity - Aesthetics - Oxygen - Improve quality of life - Co2 to O2 - Shade - Habitat/ biodiversity - Erosion - Clean water - Soil enrichment
Acid mine drainage
Biological control (alternative to pesticides)
Ecological services
Fertilizers
50. The surface soil that must be moved away to get at coal seams and mineral deposits
Overburden
Fertilizers
Impact of Mountain-Top Removal
Open pit mine