Climate Change
Ecosystems & Biodiversity
Energy Resources
Water & Soil
Human Impact & conservation
100

What greenhouse gas is produced in large amounts when burning fossil fuels?

What is carbon dioxide?

100

What organisms break down dead organic matter and recycle nutrients back into ecosystems?

What are decomposers?

100

What renewable energy source uses moving air to generate electricity through turbines?

What is wind energy?

100

what process occurs when excess nutrients cause algal blooms and low oxygen levels in water 

what is eutrophication?

100

what practice involves replanting trees in areas where forest were removed 

What is reforestation?

200

What international agreement aimed to take out substances that depleted the ozone layer?

What is the Montreal Protocol?

200

This type of species has a disproportionately large effect on its ecosystem compared to its population size? 

What is a keystone species?

200

What nonrenewable energy source is formed from ancient marine life buried under heat and pressure?

What is petroleum?

200

what process by which water vapor cools and forms clouds is part of the water cycle 

what Is condensation?

200

What  type of waste includes items like discarded electronics, batteries, and old computers 

what is e-waste?

300

What air pollutant forms when nitrogen oxides and VOCs react in sunlight?

What is ground-level ozone?

300

What species are not native to an ecosystem and often cause environmental harm?

What is an invasive species?

300

What renewable resource uses the heat from within the earth to generate energy?

What is geothermal energy?

300

what process happens when groundwater is pumped faster than it can naturally recharge

What is aquifer depletion?

300

What law in the United States regulates the six major criteria air pollutants 

what is the clean air act?

400
What is it called when sulfur dioxide and nitrogen oxides mix with water vapor in the atmosphere?

What is acid rain?

400

This term refers to the variety of life found within an ecosystem, biome, or the entire planet?

What is Biodiversity?

400

What energy source uses sunlight to produce electricity through photovoltaic cells?

What is solar energy?

400

what farming practice helps reduce soil erosion by plowing along the natural shape of land 

what is contour plowing?

400

what process converts atmospheric nitrogen into a usable form for plants 

what is nitrogen fixation?

500

What layer of the Earth's atmosphere contains the ozone layer that protects us from UV radiation?

What is the stratosphere?

500

What unit is commonly used to measure Biodiversity by counting the number of different species in an area?

What is species richness?

500

what fossil fuel produces the most carbon dioxide per unit of energy when burned.

what is coal?

500

What phenomenon occurs when warm water prevents nutrient-rich cold water from rising to the surface 

what is thermal stratification?

500

What biome is characterized by low rainfall, sparse vegetation, and extreme temperatures 

what is desert?

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