Describe sustainable development
Meeting current needs without compromising future generations' ability to meet theirs.
Describe non-point source pollution
Pollution from diffuse sources, such as agricultural runoff or urban runoff.
Define the term 'biome'
Large community of plants and animals occupying a distinct region.
Describe the impact of acid rain on ecosystems
Lowers pH of soil and water, harms aquatic life, damages vegetation.
Define carrying capacity
Maximum population size an environment can sustain indefinitely.
Describe the impact of overfishing on marine ecosystems
Depletes fish stocks, disrupts food webs, decreases biodiversity.
Define and contrast primary and secondary air pollutants
Primary pollutants are directly emitted, secondary form from reactions in the atmosphere.
Describe how the nitrogen cycle affects ecosystems
Cycles nitrogen through the environment, essential for DNA and proteins.
Define and explain environmental ethics
Moral principles guiding human interaction with the natural world.
Describe how renewable energy sources impact the environment
Generally lower environmental impact, but may have land use, habitat, or resource issues.
Describe the difference between renewable and nonrenewable resources
Renewable resources regenerate, nonrenewable resources are finite.
Define urban sprawl and its environmental impacts
Unplanned city expansion, leads to habitat loss, increased pollution, inefficiency.
Define point source pollution
Pollution from a single, identifiable source, like a factory or sewage treatment plant.
Describe how energy flows through an ecosystem
Flows from producers to consumers, energy is lost as heat at each trophic level.
Define environmental justice
Fair treatment of all people regarding environmental laws and policies.
Describe the impact of invasive species
Disrupt ecosystems, outcompete native species, alter habitats.
Define environmental resilience
Ability of an ecosystem to recover after disturbance or stress.
Define and explain the precautionary principle
Preventative action in the face of uncertainty, shifting the burden of proof to those proposing an action that may harm the environment.
Define the trophic level
Position an organism occupies in a food web, e.g., producer, consumer.
Define and explain carbon sequestration
Long-term storage of carbon dioxide or other forms of carbon to mitigate global warming.
Describe the concept of integrated pest management (IPM)
Combines biological, cultural, physical, and chemical tools to manage pests sustainably.
Define the first law of thermodynamics
Energy is neither created nor destroyed, only transformed.
Define and contrast mitigation and adaptation in climate change
Mitigation reduces climate change causes, adaptation involves adjusting to its effects.
Describe the impact of deforestation
Loss of biodiversity, carbon release, disruption of water cycles.
Define the concept of a keystone species
Species with disproportionate effect on its environment relative to abundance.