Ecosystems
Energy Resources
Pollution
Laws & Agreements
Human Impact
100
The role an organism plays in its environment.
What is a niche?
100
This fossil fuel is the most widely used worldwide.
What is coal?
100
Excess nitrogen and phosphorus in water lead to this phenomenon.
What is eutrophication?
100
U.S. law that regulates water pollution.
What is the Clean Water Act?
100
The buildup of a substance in an organism over time.
What is bioaccumulation?
200
This biome has the highest biodiversity on Earth.
What is the tropical rainforest?
200
Solar, wind and hydro are examples of what type of energy.
What is renewable energy?
200
This pollutant mainly responsible for acid rain.
What is sulfur dioxide?
200
International agreement to phase out ozone-depleting substances.
What is the Montreal Protocol?
200
Removing trees without replanting is known as.
What is deforestation?
300
This process converts nitrogen gas into ammonia usable by plants.
What is nitrogen fixation?
300
This radioactive element is used in nuclear fission.
What is uranium?
300
Indoor pollutant once used in insulation and ceiling tiles.
What is asbestos?
300
This 1970 law set air quality standards in the U.S.
What is the Clean Air Act?
300
The major cause of species extinction today.
What is habitat loss?
400
In an energy pyramid, this trophic level has the most energy.
What are producers?
400
This country is the largest consumer of coal.
What is China?
400
This pollutant forms when NOx and VOCs react in sunlight.
What is photochemical smog?
400
This law requires environmental impact statements for major federal projects.
What is NEPA?
400
When a population exceeds the carrying capacity.
What is overshoot?
500
The species that are present first in an ecosystem going through primary succession.
What is a pioneer species?
500
This law states that energy cannot be created or destroyed.
What is the First Law of Thermodynamics?
500
Type of pollution that cannot be traced to a single source and an example.
What is nonpoint source pollution and runoff?
500
This treaty aims to reduce global greenhouse gas emissions.
What is the Kyoto Protocol?
500
A measure of human demand on Earth's ecosystems.
What is an ecological footprint?