Pollution
Biodiversity
Population
Climate Change
Energy
100

The presence in the air of a substance which has harmful or poisonous effects.

What is air pollution?

100

The percentage of energy which does not move on to the next trophic level.

What is 90%?

100

Exponential growth graph.

What is a J-curve?

100

The process by which thermal radiation from Earth's surface is absorbed by certain gases and bounced back.

What is global warming?
100
Fuel from the remains of dead plants and animals.

What are fossil fuels?

200

Small particles that rest midway in the air.

What are particulates?

200

An inherited characteristic that helps an organism survive in its environment.

What is adaptation?

200

The growth rate of a city population of 10,000 experiences 100 births, 30 deaths, 10 immigrants, and 20 emigrants in the course of a year.

What is 0.6%?

200

Encompasses how one thinks the world works; how one views one’s role in the world; and what one believes to be proper environmental behavior.

What is an environmental world view?

200

The "cleanest" type of nonrenewable energy.

What is natural gas?

300

The enrichment of bodies of fresh water by inorganic plant nutrients (e.g. nitrate, phosphate).

What is eutrophication?

300

When two species divide a resource based on differences in their behavior or morphology.

What is resource partitioning?

300

Doubling time of a country grows at a rate of approximately 5 percent per year.

What is 14 years?

300

The collective natural effects of changes in the Earth's movements on its climate over thousands of years.

What is the Milankovitch Cycle? 

300

A nuclear power plant in 1986 that released large amounts of radiation in Ukraine.

What is Chernobyl?

400

This law regulates air pollution.

What is The Clean Air Act?

400

This ecosystem has the highest level of productivity.

What is the tropical rainforest?

400

As a country moves from a subsistence economy to industrialization and increased affluence, it undergoes a predictable shift in population growth.

What is demographic transition?
400

Carbon dioxide emissions have increased by this percentage.

What is 25%?

400

How energy is released during an earthquake.

What is elastic rebound theory?

500

The independent executive agency of the United States federal government tasked with environmental protection matters.

What is the Environmental Protection Agency?

500

The process of speciation that occurs with geographic isolation.

What is allopatric speciation?

500

An estimate of the average number of children that each woman in a population will bear throughout her childbreaing years.

What is Total Fertility Rate?
500

International treaty that sets binding obligations on developed countries to reduce emissions of greenhouse gases.

What is Kyoto Protocol?

500

The official term for electronic component that generates electricity when exposed to photons, or particles of light.

What is a photovoltaic cell?

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