Footprint
Pyramid
Factors
Needed to Live
Nitrogen Cycle
100

Living "green" can decrease this footprint

What is carbon footprint?

100

This pyramid shows the flow of energy from one trophic level to another

What is the Energy Pyramid?

100

Non living parts of an environment

What is abiotic factors?

100

The process where carbon atoms continually travel from the atmosphere to the earth

What is the carbon cycle?

100

This chemical cannot be breathed, it must be consumed

What is nitrogen?

200

Walking, biking, carpooling, and using mass transit are all ways to reduce this

What is your carbon footprint?

200

This group is at the base of an Energy Pyramid

What are producers?

200

Living parts of an enviornment

What is biotic factor?

200

This is the first step in the carbon cycle

What is carbon enters the atmosphere?

200

When nitrogen turns into different forms, it is called this

What is the Nitrogen Cycle?

300

The four R's of reducing your carbon footprint

What is refuse, reduce, reuse, recycle?

300

This level of an energy pyramid has the most energy

What is the lowest level, or the producers?

300

This factor includes plants, animals, algae, and bacteria

What is biotic factor?

300

Carbon enters the atmosphere from breathing as this gas

What is carbon dioxide?

300

The first step in the process of making nitrogen usable by plants is this

What is fixation?

400

The total amount of greenhouse gases produced to directly and indirectly support human activities

What is the carbon footprint?

400

This level of the energy pyramid has the least amount of energy

What is the highest level of the pyramid?

400

This factor keep populations within an ecosystem at a certain level

What is limiting factor?

400

Carbon dioxide is absorbed by life forms that make their own food (such as plants), called this

What are producers?

400

Nitrogen goes back into the earth when animals to this

What is produce wast or die?

500

Most of the carbon footprint emissions for the average US household come from these sources?

What is indirect sources?

500

This group is at the top of the energy pyramid?

What is the top predator group?

500

Earth's most important abiotic factor

What is the sun?

500

Dead animals and plants are eaten by decomposers in the ground and become this

What is fossil fuel?

500

This is the most important part of the Nitrogen Cycle

What is bacteria?