Nitrogen Cycle
What is the formula for nitrogen gas?
N2
What is the primary reservoir for phosphorous?
Rocks
In what form is carbon found in the atmosphere?
carbon dioxide
This process changes water from a liquid to a gas
Evaporation
Which of the cycles does not involve the atmosphere?
Phosphorous
What process transforms nitrogen gas into a form of nitrogen that can be used by plants?
Nitrogen-fixation
What process removes phosphorous from rocks?
Weathering
What process removes carbon from the atmosphere?
Photosynthesis
What is the name for the process that turns water from a gas to a liquid?
Condensation
Where do plants take up most nutrients?
Through the roots
What process returns nitrogen in the soil to the atmosphere?
Denitification
Another name for the phosphorous cycle is the...
Sedimentary cycle
What is the largest reservoir for carbon?
Water/oceans
The release of water vapor from the leaves of plants is known as...
Transpiration
Runoff can often relocate soil/sediment. What is that process called?
Erosion
What form of nitrogen is most easily taken up by plants?
Nitrates
What are the 2 types of weathering?
Mechanical and chemical
What process includes carbon dioxide as a product?
Respiration
What process moves water underground initially?
Infiltration
What organism is responsible for decomposition, nitrogen-fixation, and denitrification, among other processes?
Bacteria
Bacteria in the roots of what type of plants is responsible for transforming atmospheric nitrogen?
The runoff of excess nitrogen and phosphorous into aquatic ecosystems can lead to this phenomenon...
Eutrophication
What is the name for the process of burning fossil fuels for energy?
Combustion
What is the name for the process that transforms water from a solid to a gas?
Sublimation
Carbon dioxide is part of the atmosphere responsible for reflecting some of the sun's rays back to Earth. What is the overall name for these gases?
Greenhouse gases