Aquatic & Terrestrial Pollution
Which of the following is a characteristic of persistent organic pollutants (POPs) that makes them a concern for environmental and human health?
They break down quickly in the environment.
They bioaccumulate in organisms.
They are easily flushed out of organisms.
They have minimal impact on ecosystems.
Which of the following is a common source of persistent organic pollutants (POPs)?
Natural decomposition of organic matter
Industrial processes and pesticides
Volcanic eruptions
Photosynthesis
Legacy sources contribute to current POP levels. Which of the following describes the most significant way legacy sources impact the environment today?
They quickly degrade and neutralize existing POPs.
They continue to release POPs from past uses into the environment.
They have been completely removed through international efforts.
They only affect areas where POPs were initially used and do not spread.
How does the long-range transport of POPs primarily occur?
Through the intentional dumping of chemicals into the ocean.
Via the migration of animals that have accumulated POPs.
Through air and water currents carrying POPs across continents.
By direct application of pesticides in agricultural fields only.
Which of the following health impacts is most directly associated with the bioaccumulation of POPs in fatty tissues?
Improved immune function
Reduced risk of cancer
Hormonal imbalances
Enhanced neurological development
What was the primary effect of DDT on birds of prey, leading to population declines?
Increased eggshell thickness
Eggshell thinning
Enhanced reproductive success
Resistance to pesticides
Which of the following is NOT a primary way in which POPs are transported through the environment?
Airborne transport
Waterborne transport
Biomagnification
Rapid degradation

How are we doing?
Give us your feedback and let us know how we can improve
Which of the following best describes a source of POPs that involves byproducts from burning waste?
Industrial Sources
Pesticides
Combustion
Natural Sources
Which of the following scenarios best illustrates an anthropogenic source of POPs?
Release of dioxins from a forest fire.
Use of PCBs in electrical equipment.
Natural seepage of chemicals from rocks into a water body.
Decomposition of organic matter in a swamp.
Which process describes the increase in POP concentration as it moves up the food chain?
Bioaccumulation
Biodegradation
Biomagnification
Bioremediation