Math
Legislation
Cycles
Biomes
Vocabulary
100

This is the percent growth rate if a population of 1,000 grows by 10 in one year.

What is 1%?

100

This U.S. law, passed in 1970, regulates air emissions from stationary and mobile sources.

When is the Clean Air Act?

100

This cycle involves the movement of CO₂ through the atmosphere, plants, animals, and fossil fuels.

What is Carbon?

100

This biome has the greatest biodiversity and high annual rainfall.

What is Rain Forest?

100

This term means the variety of life within an ecosystem or on Earth.

What is Biodiversity?

200

This formula estimates how many years it takes for a population to double.

What is Doubling?

200

This international agreement signed in 1987 aimed to phase out substances that deplete the ozone layer.

What is Montreal
200

This cycle involves bacteria converting atmospheric N₂ into a form plants can use.

What is Nitrogen?

200

This biome has tall grasses, few trees, and distinct wet and dry seasons.

What is Savanna?

200

This word describes the ability of an ecosystem to maintain its functions over time.

What is Sustainability?

300

This is the total energy in megawatt-hours produced by a 500 MW power plant running for 6 hours.

What is 3000?

300

This international treaty protects endangered species from international trade.

What is CITES?

300

This cycle does not involve a gaseous phase and mainly moves through rocks and sediments.

What is Phosphorus?

300

This biome is dominated by coniferous trees and long, cold winters.

What is Taiga?

300

Shift from family farms to industrial scale

What is Green Revolution?

400

If an ecosystem has a GPP (Gross Primary Productivity) of 800 kcal/m²/year and plant respiration is 200 kcal/m²/year, this is the NPP.

What is 600?

400

This U.S. law, declared the Love Canal as a Superfund site

What is CERCLA?

400

This cycle includes evaporation, condensation, and precipitation.

What is Water?

400

This hot and dry biome features sparse vegetation and extreme temperature changes.

What is Desert?

400

This process occurs when excess nutrients in water cause algae blooms and oxygen depletion.

What is Eutrophication? 

500

This is the per capita energy use if a country consumes 1,000,000 kWh and has a population of 2,000.

What is 500?

500

The 3 important international agreements

What is Kyoto Protocal, Montreal Protocal, CITIES

500

This element’s cycle includes volcanic activity and is a component of acid rain.

What is Sulfur?

500

This biome is characterized by very low temperatures and permafrost.

What is Tundra?

500

Chlorofluorocarbon stands for

What is CFCs?