Ecosystems & Biodiversity
Population Ecology
Earth
Energy & Climate Change
Pollution & Policy
100

This process converts sunlight into chemical energy in plants.

What is photosynthesis?

100

The total number of individuals per unit area is called

What is population density?

100

Layer of atmosphere containing the weather

What is the troposphere?

100

Most abundant fossil fuel worldwide

What is coal?

100

Rainfall with a pH below normal due to sulfur dioxide and nitrgoen oxides

What is acid rain?

200

The variety of life in an ecosystem is called this.

What is biodiversity?
200

Population growth that forms a J-shaped curve

What is exponential growth?

200

This gas makes up about 78% of Earth's atmosphere

What is nitrogen?

200

Energy derived from moving air

What is wind energy?

200

Excess nutrients in waer leading to algal blooms

What is eutrophication?

300

A species with a large impact on an ecosystem relative to its abundance is called

What is a keystone species?

300

Factors such as disease and competition that increase with population desnsity

What are growth-dependent factors?

300

The process by which water moves from plants into the atmospehre

What is transpiration?

300

The primary greenhouse gas released by burning fossil fuels

What is carbon dioxide?

300

The U.S. law regulating air emissions from stationary and mobile sources

What is the Clean Air Act?

400

A gradual cchange in species composiiton afer a disturbance is called this

What is ecological succession?

400

The demographic transition stage characterized by low birth rates and death rates.

What is stage 4?

400

A groundwater source stored in permeable rock

What is an aquifer?

400
The increase in Earth's average temperature due to greenhouse gases

What is global warming?

400

The international agreement that reduced ozone-depleating substances

What is the Montreal Protocol?

500
The maximum population size an environment can sustainably support.

What is carrying capacity?

500

A survivorship curve common in humans and large mammals

What is a Type I survivorship curve?

500

The boundary where one tectonic plate slides past another

What is a transform boundary?

500

The reflective ability of a surface

What is albedo?

500
A market-based apporach where companies can buy and sell pollution allowances

What is cap-and-trade?

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