Cycles Flashcards
What does waters high heat storage do?
Distributes heat and determines regional and local climates.
Water is a ______ gas.
Water is a greenhouse gas.
Water is the universal ______. often interacts with other cycles since it moves them.
Water is the universal solvent. often interacts with other cycles since it moves them.
How do humans alter the water cycle?
- Overuse water
- Increase pollutants in runoff
- Reduce infiltration with pavement that prevent recharging of groundwater
- Accelerate Erosion
- Alter weather with deforestation
What do producers release as a product of respiration?
Carbon
What is the largest reservoir of carbon
The ocean
How do humans alter the Carbon Cycle?
- Extraction and burning of fossil fuels
- Cutting carbon-absorbing vegitation
- Increased concentration of carbon dioxide in atmosphere (global warming).
What does nitrogen dixing bacteria do?
Makwe =e nitrogen useable to plants.
Why is nitrogen important?
It is a key component of proteins, vitamins, and nucleic acids (DNA and RNA)
Nitrogen is a limiting factor for _______
Nitrogen is a limiting factor for primary productivity
How do humans impact the Nitrogen Cycle?
- Add nitrogen to the atmosphere by burning fuel which causes acid rain
- Deforestation releases nitrogen into the atmosphere
- Agricultural runoff adds excess NO3 to water which decreases the oxygen in water (kills fish)
- harvesting vcrops. irrigation, and burying ot clearing grasslands and forests cause nitrogen to wash away from the topsoil
- inorganic fertilizers have doubled nitrogen release
How can phosphates be lost from the cycle?
When washed into oceans and held in marine sediment.
Why are phosphates important?
They are important nutrients and are incorporated into nucleic acids, ADP, and ATP, bones, and teeth.
How do humans impact the Phosphorus Cycle?
- Mining for phosphate salts that are added. into fertilizers which adds excess phosphates into runoff.
- Clearing forests causes phosphates to wash away.
