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33 Cards in this Set
- Front
- Back
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What region does El Nino occur |
equatorial region |
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What are some consequences if global warming continues |
Hurricanes and other storms are likely to become stronger. |
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What natural event would cool the earth’s atmosphere |
volcanism |
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How have human beings altered the Sulfur Cycle |
The burning of coal, natural gas, and other fossil fuels |
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What is the greenhouse effect |
the trapping of the sun's warmth in a planet's lower atmosphere |
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What would happen to earth without the greenhouse effect |
the earth would be too cold for humans and any other living thing to survive. |
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What percentage of the Earth’s water is fresh water |
3 percent |
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What greenhouse gas is a by-product of anaerobic respiration? |
Methane |
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In the nitrogen cycle, what is the primary abiotic nitrogen source? |
the atmosphere |
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What factor is responsible for the earth having four seasons |
The tilt of the Earth's axis makes the seasons change. |
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Why is phosphorous a limiting factor in ecosystems? |
phosphorus forms stable insoluble compounds |
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What factors cause sea levels to rise? |
Tectonic movements,Isostatic movements |
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What are the two main processes in the carbon cycle? |
photosynthesis and metabolism |
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List the greenhouse gases. |
Water,Carbon Dioxide,Methane,Nitrous Oxide,Ozone,Chlorofluorocarbon |
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Over the last 100 years global temperature has increased or decreased? By what percentage? |
increased by 35% |
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What is a positive mechanism associated with climate change? |
ocean warming |
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Where can phosphorous be found in large quantities? |
mining of phosphate-rich sedimentary rocks containing fossils of marine animals |
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What does the P stand for in ATP? |
phosphate |
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Is Table salt organic or inorganic? |
Inorganic |
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Where is the most nitrogen located in an ecosystem? |
dead and living organic matter. |
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What process removes carbon from the earth’s atmosphere? |
Formation of carbonate deposits |
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Human activities have changed the water cycle. How? |
people cut down more and more trees and it increases runoffs. |
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Carbon is released back into the atmosphere in numerous ways. Name them |
respiration,decay,combustion,production of cement,surface of the oceans,volcanic eruptions. |
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What is the ultimate source of energy in a terrestrial ecosystem? |
sunlight |
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What is the most abundant gas in the earth’s atmosphere? |
Nitrogen |
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What contributes to global warming? |
human carbon dioxide emissions from burning fossil fuels |
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What keeps the poles from becoming colder? |
greenhouse effect |
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What are some solutions to reducing CO2 in the atmosphere? |
planting trees and using renewable sources. |
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What is the main factor that is causing sea levels to rise? |
temperature of the water rising and melting glaciers. |
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Photosynthesis is a major source of what gas in the atmosphere? |
oxygen |
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Define: photosynthesis, eutrophication, decomposition, transpiration, denitrification, assimilation, ammonification, nitrogen fixing, nitrification. |
the process by which green plants and some other organisms use sunlight to synthesize foods. is a process whereby water bodies, such as lakes, estuaries, or slow-moving streams receive excess nutrients.Breakdown or decay of organic materials.is the process where plants absorb water through the roots and then give off water vapor through pores in their leaves.the loss or removal of nitrogen or nitrogen compounds.is the combination of two processes to supply cells with nutrients.decomposition with production of ammonia or ammonium compounds especially by the action of bacteria on nitrogenous organic matter.the conversion of atmospheric nitrogen into nitrogen compounds by certain bacteria.is the biological oxidation of ammonia or ammonium to nitrite followed by the oxidation of the nitrite to nitrate. |
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Which organisms convert ammonia to nitrites? |
nitrification |
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Which organisms convert hydrogen into ammonia? |
nitrogen fixation |
