Pollution Quiz

What does a point source of pollution refer to?

• A source of pollution that is spread out and difficult to identify

• A single, identifiable source of a pollutant, such as a smokestack or waste discharge pipe

• A source of pollution that comes from natural sources like forests and oceans

• A source of pollution that is regulated by international treaties

Which of the following is an example of nonpoint source pollution?

• A specific factory discharging chemicals into a river

• Pesticide spraying over a large agricultural area

• A sewage treatment plant with a designated outflow pipe

• An oil spill from a tanker with a known location

Why are nonpoint sources of pollution difficult to identify?

• They are always underwater and invisible to the naked eye

• They do not actually contribute to pollution

• They are diffused and spread out over large areas

• They are only active at night

What must you be able to describe regarding human impacts on ecosystems?

• The impacts of natural disasters on aquatic ecosystems

• The impacts of human activities on terrestrial ecosystems

• The impacts of human activities on aquatic ecosystems

• The impacts of aquatic activities on human ecosystems

What happens to organisms when they are outside their range of tolerance for various pollutants?

• They thrive and increase in population

• They maintain homeostasis without any issues

• They may experience physiological stress, limited growth, reduced reproduction, and in extreme cases, death

• They adapt immediately to the new conditions

What is the term used to describe the range in which organisms can maintain homeostasis for each factor?

• Zone of intolerance

• Range of optimum

• Lower limit of tolerance

• Upper limit of tolerance

What factors have been contributing to the damage of coral reefs?

• Overfishing and plastic pollution

• Increasing ocean temperature, sediment runoff, and destructive fishing practices

• Acid rain and urban development

• Invasive species introduction and over-tourism

How do oil spills in marine waters affect organisms?

• They increase the water temperature

• They provide additional nutrients for marine life

• They cause organisms to die from the hydrocarbons in oil

• They promote coral reef growth

What can be a consequence of oil washing up on the beach?

• Improvement in beach sand quality

• Economic consequences on the fishing and tourism industries

• Increase in marine biodiversity

• Enhanced beach aesthetics

What are oceanic dead zones?

• Regions in the ocean with an abundance of fish due to high oxygen levels

• Areas of low oxygen in the world's oceans caused by increased nutrient pollution

• Zones where oceanic life thrives due to low levels of pollution

• Protected marine areas where fishing is prohibited