Terms in this set (26)
major areas of water storage on Earth?
Atmosphere, surface water, ground water, and ocean
Where is ground water stored?
Two processes in which water is converted to vapor
Transpiration and evaporation
Two methods by which water on land returns to the oceans
Surface runoff and groundwater flow
If the air contains high high levels of pollutants what effect would this have on water quality?
Pollutants cam be brought down to contaminate rivers, lakes, streams and oceans
Which processes of the water cycle might contribute to the addition of pollutants to rivers, lakes and oceans? Why?
Precipitate air pollutants into water
Which of the processes with the water cycle might be respnsible for helping clean or filter the water?
-absorption and transpiration in plants
-percolation in rocks
What does the closed system say about the importance of keeping water on earth free from pollution?
If water on Earth is polluted anywhere in the cycle percolation and plants are limited in what they can do and that polluted water is the same water we will have from the beginning of time on
Two ways that carbon enters the atmosphere
Respiration and combustion
What organisms carry out photosynthesis?
Algae, bacteria, and plants
What organisms break down waste?
What woild happen if decomposition did not occur?
Waste and dead organisms would be lying around and there would be less CO2 for photosythesis
Four materials that contain stored carbon
Coal, oil, peat, and natural gas (aka fossil fuels)
How do humans use the materials in the carbon sink?
Burn as energy source (combustion)
Five examples of combustion
Gas stove, tranportation, electrical appliances, heater, factories
How is the majority of electricity generated in the area where you live?
Examples of fossil fuels
Oil, natural gas, coal
How does our use of these carbon stores affect the amount of CO2 in the atmosphere?
Release carbon in atmosphere=more CO2
Use carbon faster then nature can replenish
What is a way in which human activity is increasing the amount of atmospheric CO2?
Cutting down trees
What are the potential global effects of these changes in CO2 levels?
Melt ice caps
Different temperatures effect species survival
Three types of bacteria
Nitrifying, n-fixing, and dentifying
What ways is nitrogen removed from the atmosphere?
Lightning and fixing bacteria
What is the only form of nitrogen that nonlegume plants can take in and use?
What do dentrifying bacteria do during the dentrifying process?
Go to the atmosphere
What effect would the decrease of nitrifying bacteria have on the nitrogen cycle?
Less nitrogen would go into the atmosphere
What type of compounds would accumulate as a result?
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