Water cycle Flashcards
evaporation
the process of turning from a liquid into vapor.
transpiration
(of a plant or leaf) the exhalation of water vapor through the stomata.
run-off
(of a liquid) flow over and away from a surface.
precipitation
rain, snow, sleet, or hail that falls to the ground.
condensation
Water collects as droplets on a cold surface when humid air is in contact with it.
nitrogen fixation
the chemical processes by which atmospheric nitrogen is assimilated into organic compounds, especially by certain microorganisms as part of the nitrogen cycle.
water cycle
the cycle of processes by which water circulates between the earth’s oceans, atmosphere, and land, involving precipitation as rain and snow, drainage in streams and rivers, and return to the atmosphere by evaporation and transpiration.
nitrogen cycle
the series of processes by which nitrogen and its compounds are interconverted in the environment and in living organisms, including nitrogen fixation and decomposition.
carbon cycle
the series of processes by which carbon compounds are interconverted in the environment, involving the incorporation of carbon dioxide into living tissue by photosynthesis and its return to the atmosphere through respiration, the decay of dead organisms, and the burning of fossil fuels.
absorb( evaporation and run-off)
take in or soak up (energy or a liquid or other substance) by chemical or physical action.
release (precipitation and condensation)
Atmosphere
The gas, (The air) surrounds the earth. 78% of the atmosphere is made up of Nitrogen or N2, an unusable form for most organisms.
Nitrogen
An element that all living organisms require, (DNA, proteins, chlorophyll) however, cannot be used in the form that surrounds the Earth
Nitrogen fixation
The process of converting N2, unusable nitrogen, into biologically available nitrogen.
Nitrification
There are two steps to nitrification. The first step is microbes change ammonia to nitrites (an unusable form of nitrogen for plants).The second step is is to change the nitrites into nitrates (a useable form of nitrogen for plants).
Ammonification
When an organism dies or excretes waste, the nitrogen is found in the amino acids or DNA. Fungi break down the nitrogen and release the nitrogen back into the ecosystem.
Denitrification
The process that changes the nitrates into nitrogen gas (N2), back into an unusable form.
Carbon reservoir
a part of Earth that stores carbon.
Examples of carbon reservoirs include the atmosphere, the ocean, soils, sediments, and the biosphere.
Carbon sink
a carbon reservoir that absorbs carbon from the atmosphere and stores it for a long period of time.
Photosynthesis
a process in which plants use energy from light to change carbon dioxide and water into glucose (sugar) and oxygen.
Carbon Cycle
The movement of carbon from the reservoir to reservoir
Water cycle
The water cycle shows the continuous movement of water within the Earth and atmosphere. It is a complex system that includes many different processes. Liquid water evaporates into water vapor, condenses to form clouds, and precipitates back to earth in the form of rain and snow.
Groundwater
Water that infiltrates or seeps into the ground. Sometimes this water can flow out of the water, like a spring. Sometimes, this water can seep from the ground into a lake, pond, or ocean.
Aquifer
Water deep underground can be stored for 1,000 years. It can be found in water-bearing, permeable rock.