Climate Change
Energy and Resources
Plate Tectonics
Population and Ecosystem
Water, Agriculture and Sustainability
100

This greenhouse gas is released when fossil fuels are burned.

What is carbon dioxide?

100

These energy resources can naturally replace themselves over a short period of time.

What are renewable resources?

100

These are large pieces of Earth’s crust that move slowly over time.

What are tectonic plates?

100

This is the maximum population size an environment can support.

What is carrying capacity?

100

This is an underground layer of rock or sediment that stores groundwater.

What is an aquifer?

200

This is what happens to global temperatures when carbon dioxide levels increase.

What is global temperatures usually rise?

200

Coal, oil, and natural gas are examples of this type of energy resource.

What are nonrenewable resources?

200

This type of boundary occurs where two plates move away from each other.

What is a divergent boundary?

200

These factors, such as food, water, space, and disease, control population size.

What are limiting factors?

200

This farming practice means growing the same crop repeatedly in the same area.

What is monocropping?

300

Carbon dioxide is considered a greenhouse gas because it does this in the atmosphere.

What is traps heat?

300

Solar and wind energy are generally more sustainable because they produce less of this type of pollution.

What are greenhouse gas emissions?

300

This type of boundary occurs where two plates slide past each other.

What is a transform boundary?

300

This type of population growth starts slowly, rises quickly, and forms a J-shaped curve.

What is exponential growth?

300

This farming practice helps soil health by planting different crops in different seasons.

What is crop rotation?

400

Melting ice sheets contribute to this environmental problem.

What is rising sea levels?

400

Solar energy may not be the best choice in a region that lacks this.

What is sunlight?

400

Trenches are often formed when one tectonic plate does this beneath another plate.

What is subducts?

400

Producers are important because they bring this into the food web through photosynthesis.

What is energy?

400

Fertilizer runoff can cause excess algae growth, which may lead to this low-oxygen area in water.

What is a dead zone?

500

Water vapor is considered a positive feedback mechanism because warming causes more evaporation, which leads to this.

What is more water vapor trapping more heat and increasing warming?

500

Recycling helps conserve natural resources because it reduces the need for this process.

What is extracting or mining new raw materials?

500

Mountain ranges can form when two continental plates collide at this type of boundary.

What is a convergent boundary?

500

A long drought that reduces plant growth can affect the whole food web because fewer producers means this.

What is less energy available for consumers?

500

Irrigation can cause soil salinization when water evaporates and leaves this behind in the soil.

What is salt?

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