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Environmental Science - Unit 5 Retake
By Admin Espinoza
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Last updated about 1 year ago
30 questions
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What does the 'Tragedy of the Commons' refer to?
A historical event where common land was mismanaged.
The economic theory that individuals acting in self-interest will deplete a common resource.
A play by William Shakespeare.
Common tragic themes found in literature.
Which resource is often cited as an example of the 'Tragedy of the Commons'?
National parks
The Internet
Fisheries
Solar energy
What is an environmental issue most directly associated with clearcutting?
Enhanced greenhouse gas absorption
Increased soil erosion and sedimentation
Improved soil fertility
Increased water retention
How does clearcutting contribute to climate change?
Reducing trees that store CO2
Increasing the ozone hole
Releasing oxygen when trees are cut
Increasing the number of trees growing
What was a primary objective of the Green Revolution?
Reduce the environmental impact of farming
Promote organic farming methods
Increase food production through new agricultural practices
Decrease reliance on synthetic chemicals
Which is a disadvantage of synthetic fertilizers?
Always improve soil structure
Can lead to eutrophication due to runoff
Are more expensive than organic fertilizers
Provide only micronutrients to crops
Which agricultural practice involves turning over the soil before planting?
Crop rotation
Tilling
Hydroponics
Polyculture farming
What is the most likely result of excessive fertilizer use?
Direct poisoning of aquatic life
Increased soil organic matter
Eutrophication in water bodies
Decline in pollinators
What is the largest human use of freshwater globally?
Drinking
Irrigation
Industrial processes
What happens in waterlogging?
Soil loses all its water
Soil erodes
Water table rises, reducing oxygen absorption
Plants receive excessive nutrients
What is the 'pesticide treadmill'?
The need for continuous pesticide use
Rotating pesticides to maintain effectiveness
Using pesticides to increase crop growth
Using lower pesticide amounts each year
What is an advantage of genetically modified crops?
Increased chemical pesticide use
Higher yields per hectare
Increased genetic diversity
No risk of cross-contamination
What is a primary reason for using CAFOs in meat production?
More cost-effective and efficient
Require more land than grazing
Produce higher-nutrition meat
Reduce water and soil pollution
What is an impact of overgrazing?
Increased soil fertility
Loss of vegetation and erosion
More efficient water use
Enhanced carbon sequestration
What is bycatch in fishing?
Intended catch
Fish caught and released
Unintended catch often discarded
The most profitable catch
How can individual consumers reduce overfishing impacts?
Choosing sustainable seafood
Eating only high-demand species
Avoiding all seafood
Supporting bycatch consumption
What happens as high-grade ores are depleted?
Ores become purer
Quality remains the same
Lower-grade ores become primary
Ores become renewable
What is acid mine drainage?
Water draining from acidic rock
Acids neutralized by mining
Strong acids dissolving minerals
Drainage increasing soil fertility
What is an impervious surface?
Surface allowing water to seep
Structure preventing water from soil
Enhancer of groundwater recharge
Soil type absorbing water quickly
How can cities reduce urban heat islands?
Build bridges to connect suburbs
Plant trees and green roofs
Remove parks to make space
Use heat-absorbing materials
What does sustainability aim to achieve?
Increased resource use over time
Use of resources without depleting them
Complete halt of resource use
Focus on short-term gains
What is sustainable yield?
Maximum profit from resources
Renewable resource use without depletion
Use of non-renewable resources
All available resources for use
What is urban runoff?
Rainwater flowing over surfaces into drains
Collecting rainwater for urban farms
Excess water from dams
Water diverted to farms
Which method increases water infiltration in cities?
Impermeable surfaces
Permeable pavement
Cutting down trees
Expanding paved areas
What is IPM?
Chemical pesticides only
Natural predators only
Combining multiple pest control methods
Exclusive crop rotation
What is an advantage of IPM?
Reduces pesticide risks to health
Simplifies pest control
Least expensive option
Eliminates all insects
What is rotational grazing?
Moving livestock to allow soil recovery
Keeping livestock in one pasture
Rotating crops, not livestock
Using synthetic meat alternatives
How does terracing benefit steep slopes?
Increases runoff speed
Reduces soil erosion
Encourages tree planting
Stops all vegetation growth
What is a disadvantage of aquaculture?
Disease transmission to wild fish
More fuel than traditional fishing
Less controlled environment
Fewer fish available for consumption
Why are prescribed burns used in forests?
Clear land for farming
Reduce uncontrolled wildfires
Remove wildlife from forests
Increase urban expansion