Land & Water Use
How does a decrease in primary producer biomass most likely affect an ecosystem?
It increases biodiversity by allowing new species to occupy empty niches.
It limits available energy for higher trophic levels, reducing their biomass as well.
It promotes greater primary productivity due to decreased competition for sunlight.
It enhances nutrient cycling efficiency through faster decomposition rates.
How does the construction of dams for hydroelectric power generation most directly impact river ecosystems?
Alters natural water flow and disrupts habitats for aquatic species downstream.
Decreases competition among fish species by expanding available habitat range.
Increases sediment deposition upstream benefiting certain freshwater species.
Enhances nutrient cycling within the river system through controlled water release.
What could be an indirect effect of global warming on insect vector-borne diseases that would impact sustainability efforts?
Decrease in vector lifespans due to higher temperatures reducing transmission
Expansion of disease vectors' geographic range increasing exposure risks
Introduction of new predators controlling disease vector populations
Greater cold snaps decimating insect population carrying diseases
What is one factor to consider when determining the sustainable yield of a resource?
The total global population
The impact of extraction on the environment
The scarcity of the resource
The demand for alternative resources
What do green buildings primarily aim to reduce?
The need for artificial lighting only.
The number of windows used in design.
The cost of construction only.
Energy consumption and waste production.
In managing freshwater resources sustainably while meeting increasing demand by growing populations which option demonstrates an effective compromise?
Drastically decreasing water allocations to essential services like firefighting and sanitation to avoid shortages.
Implementing efficient water-saving technologies within municipal supply systems.
Building extensive dam networks regardless of complex ecosystem disruptions they might cause.
Eliminating agricultural irrigation to prioritize domestic and commercial uses despite potential food security issues.
Which of the following is NOT an important factor for environmental sustainability?
CO2 concentrations
Food production
Increased human population levels
Resource consumption

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How does managing fish populations at a sustainable yield benefit humans?
It ensures a consistent supply of the resource
It maximizes short-term economic gains
It increases the demand for alternative resources
It leads to the eradication of fish populations
Which practice is an example of sustainable agriculture?
Clear-cutting forests to expand farmland.
Excessive use of chemical fertilizers.
Crop rotation to maintain soil fertility.
Intensive irrigation leading to salinization.
Which approach would be the most effective in reducing the ecological footprint of a rapidly urbanizing area without significantly compromising human economic activities?
Expanding suburban development to reduce population density in urban centers.
Implementing green building standards and enhancing public transportation efficiency.
Increasing the reliance on fossil fuels for energy to support industrial growth.
Promoting policies that encourage consumption-based economic growth models.