Which term names the largest population an environment can support over time with its available resources?

Which term names the rate at which producers convert solar energy into chemical energy stored in biomass?

Which nitrogen-cycle process returns nitrogen gas to the atmosphere by converting nitrate under low-oxygen conditions?

Which term describes a contaminant reaching higher concentrations at successively higher trophic levels?

Which economic term names a cost imposed on people who were not part of the transaction that caused it?

Which atmospheric condition occurs when warm air above cooler surface air limits vertical mixing and can trap pollutants near the ground?

Which term names the buildup of soluble salts in soil, often after repeated irrigation and evaporation?

Which term names wastewater released from a treatment plant or industrial facility into a water body?

Which term describes water that is safe for people to drink?

Which term names restoring disturbed land, such as a surface mine, to a stable and usable condition?

Which term names permeable underground rock or sediment that stores and transmits groundwater to wells or springs?

Which term describes a species whose removal causes disproportionately large changes in an ecosystem?

Which term names the fraction of incoming radiation that a surface reflects?

Which term describes a resource replenished naturally on a human timescale?

What does extirpation mean?

What does eutrophication mean?

What does anthropogenic mean?

What does cap and trade mean?

What does LD50 measure?

What does riparian describe?

What does bioaccumulation mean?

What does demographic transition describe?

What does carbon sequestration mean?

What is point-source pollution?

What does biochemical oxygen demand measure?

What does commensalism mean?

What is nonpoint-source pollution?

What does ecological succession describe?

Fertilizer runoff causes an algal bloom in a shallow bay. Why does the oxygen in the bottom water fall after the algae die?

An ecosystem's producers contain 20,000 kJ of energy. Using the approximate 10% rule, how much energy is available to the primary consumers?

A country's population grows at 2% per year. Using the rule of 70, what is its approximate doubling time?

A factory plans to discharge treated wastewater through one pipe into a river. Which U.S. law is the principal federal law governing this water-pollution discharge?

A company must manage hazardous waste from its generation through transportation, treatment, storage, and disposal. Which law establishes this cradle-to-grave framework?

A coastal town elevates buildings and enlarges stormwater culverts to reduce flood damage from rising seas and heavier rain. This is climate ______.

On sunny days, vehicle emissions react in city air and produce a brown haze containing ground-level ozone. What is this pollution problem called?

After a watershed is paved for parking lots, more rain reaches a stream quickly. Which process has increased?

Rainwater percolates through a landfill and dissolves contaminants before reaching the liner. What is this contaminated liquid called?

Carbon dioxide from fossil-fuel combustion absorbs outgoing infrared radiation and warms the lower atmosphere. What is this process called?

Nutrient runoff delivered by the Mississippi River contributes to the Gulf of Mexico dead zone, where bottom-water dissolved oxygen is very low. What condition is present?

A city estimates the biologically productive land and water area needed to provide its residents' resources and absorb their wastes. What measure is it calculating?