Cycling of Matter Flashcards
What are the 4 major biogeochemical cycles ?
- Carbon cycle
- Nitrogen cycle
- Phosphorus cycle
- Hydrologic cycle
What is a biogeochemical cycle ?
It is a series of cycles in which chemicals are continuously consumed, rearranged, stored and used.
What are the stages of the hydrologic cycle ?
evaporation - transpiration - condensation - precipitation - ground water
TRUE OR FALSE:
Most carbon on Earth is not recycled
True
TRUE OR FALSE :
Not every particle in every organism is a part of a biogeochemical cycle
False
What is the building block of life ?
Carbon
Carbon moves through what parts of an ecosystem in the carbon cycle ?
Biotic and abiotic parts
What are some examples of carbon sources ?
- Fossil fuels
- CO2
- Bicarbonate (CHO3)
- Carbonate rocks (limestones)
- Dead organisms
Where does most of the nitrogen cycle occur ?
underground
TRUE OR FALSE:
It is easy to acquire nitrogen directly from the abiotic environment
False
Most of the nitrogen used by living things is taken from the atmosphere by certain bacteria in a process called _____
Nitrogen fixing
where does the phosphorus cycle occur ?
It takes place at and below ground-level
How is phosphorus released ?
By the weathering of rocks
What 2 human activities add phosphorus to the environment ?
Mining and agriculture
