Question | Answer |
the effect of no greenhouse gases | frigid earth |
What does the atmosphere do to keep the night temperatures constant | lets in the earth's solar radiation in during the day, but traps the warmth |
the greenhouse gases trap | heat and moisture |
all energy from the sun that the earth traps | radiation |
when the night sky is clear what happens to the temperatures | they go down |
when nights are cloudy the tempeeratures do what | go up because the heat is trapped |
Earth's temperatures are divides into ___ layers | 4 |
name the layers of the earth's surface outward | troposphere, stratosphere, mesosphere, thermosphere |
the troposphere contains: | weather, breathable air, air pressure, and the majority of greenhouse gases |
where do most of the greenhouse gases occur naturally | troposphere |
name the naturally occuring greenhouse gases: | H2O, CO2, CH4, O3 |
name the human greenhouse gases | N2O( nitrous oxide) AND SO2( sulfer dioxide) |
name the gases that do not hold heat | 02 AND N2 |
nitrogen is ___% of the atmosphere | 78 |
Oxygen is __ % of the atmosphere | 21 |
CO2 is __ percent of the atmosphere | .03 |
Does CO2 hold heat | yes |
what would excess amount of greenhouse gases do to the earth | warm to a lethal level |
Venus has an atmosphere which is ____ percent CO2 and the temperature is _____ | 96; 872 degrees F |
what has proven the greenhouse gases and how long have they varied and what do they cause | ice core samples; 800,000 years; the earth to switch between glacial periods and inter glacial periods |
Within the ice samples amounts of what correlate temperature changes | CO2 AND CH4 |
when was the paleozoic era | 570 mya |
during the paleozoic era the CO2 amounts were _____ times higher than present | 4-6x |
what helped reduce the CO2 tempertures | abundant plant life |
when was the mesozoic era | 245 mya |
during the mesozoic era the amounts of CO2 were __________ times higher than present | 10- 15x |
why was the climate so warm during the mesozoic era | due to the increases of CO2 and this was the time the dinosaurs thrived |
when did the volcanic eruptions cause the earths's CO2 level to rise and how much did it rise | 550 mya; 12% |
CFC stands for | chlorofluorocarbon |
when were the cfc's developed | 1930's |
Are CFC's made from fossil fuels | no |
what are CFC's used in | refridgeration solvents and propellants in aerosol cans |
what did the CFC's cause | 03 depletion |
what did CFC's do to be the cause of O3 depletion | the cfc's got caught in the vortex and kept o3 from regenerating |
During the 1970's what did countries do to try to prevent O3 depletion | banned CFC's |
the harmful ingredient in CFC's is | chlorine |
when did the world nations ban CFC's | in the 1990's |
what are CFC's nickname | Ozone Eaters |
what prevented O3 from regenerating | chlorine gas |
what was added to CFC's to make it non- harmful | hydrogen ( now called HCFC) |
What agency determines harmful pollutants | Enviromental Protection Agency(EPA) |
Where is the ozone layer and what does it do | in the stratosphere; blocks some of the harmful radiation from the sun |
how thick is the ozone | 3mm |
burning rays | UV rays |
What is the ozone layers ability | breaks down gases in the atmosphere back into natural elements and compounds |
Name an example of how the ozone breaks down gases | CO2 + H2O = C + H = 03 |
What did the EPA end up doing with GFG's and when did they do this | phased out all GFG's in 1992 |
when was the Industrial Revolution | began in 1750 in England |
after the Industrial Revolution what have humans been doing to harm the enviroment | they have been putting more CO2 into the atmosphere than the ozone can break down |
How does CO2 accumulate | holds excess heat in the atmosphere |
the first man made cause of global warming | 1. burning of fossil fuels releases CO2 into the atmosphere and the mining of coal and oil releases trapped methane. |
When did what percent of the USA emmisions come from USA | 2002; 40% |
2nd human cause of global warming | transportation |
what percent of the US CO2 emmisions come from burning gas | 33% |
who is the largest consumer of oil | USA |
CFC stands for | chlorofluorocarbon |
when were the cfc's developed | 1930's |
Are CFC's made from fossil fuels | no |
what are CFC's used in | refridgeration solvents and propellants in aerosol cans |
what did the CFC's cause | 03 depletion |
what did CFC's do to be the cause of O3 depletion | the cfc's got caught in the vortex and kept o3 from regenerating |
During the 1970's what did countries do to try to prevent O3 depletion | banned CFC's |
the harmful ingredient in CFC's is | chlorine |
when did the world nations ban CFC's | in the 1990's |
what are CFC's nickname | Ozone Eaters |
what prevented O3 from regenerating | chlorine gas |
what was added to CFC's to make it non- harmful | hydrogen ( now called HCFC) |
What agency determines harmful pollutants | Enviromental Protection Agency(EPA) |
Where is the ozone layer and what does it do | in the stratosphere; blocks some of the harmful radiation from the sun |
how thick is the ozone | 3mm |
burning rays | UV rays |
What is the ozone layers ability | breaks down gases in the atmosphere back into natural elements and compounds |
Name an example of how the ozone breaks down gases | CO2 + H2O = C + H = 03 |
What did the EPA end up doing with GFG's and when did they do this | phased out all GFG's in 1992 |
when was the Industrial Revolution | began in 1750 in England |
after the Industrial Revolution what have humans been doing to harm the enviroment | they have been putting more CO2 into the atmosphere than the ozone can break down |
How does CO2 accumulate | holds excess heat in the atmosphere |
the first man made cause of global warming | 1. burning of fossil fuels releases CO2 into the atmosphere and the mining of coal and oil releases trapped methane. |
When did what percent of the USA emmisions come from USA | 2002; 40% |
2nd human cause of global warming | transportation |
what percent of the US CO2 emmisions come from burning gas | 33% |
who is the largest consumer of oil | USA |
Which one gives off more CO2, vehicles with poor gas mileage or a car with the average gas mileage | poor gas mileage |
what is the average gas mileage, and how many pounds of CO2 does this give off in the city | 12 miles per gallon;800 |
how much CO2 do drivers in New York and Los Angeles give just sitting in their cars in traffic | 600 million gallons of gas annually |
cutting and burning forests | deforestation |
By using deforestation, the planet is losing ___ million acres of rainforests | 34 |
when using deforestation we are putting ___ of CO2 in the atmosphere | millions of tons |
forests in moderate climates | temperate forests |
temperate forests absorb ____ billion tons of CO2 yearly | 2 |
name the 4th human cause of Global warming | agriculture |
how is agriculture a cause of global warming | methane is released from rice puddles when fields are flooded, plant matter decays, bovine flatulance, bogs, and mining ff |
name the causes of industry | factories and construction release nitrous and sulfuric acid. N2O breaks down naturally with reactions to sunlight. SO2 is also released by factories and vehicles |
how does acid rain form | N2O and SO2 combine with water |
Formula of acid rain | H2O+SO2+H2O= H2SO4 |
aesthetic means | puts you to sleep |
what is laughing gas | nitrous oxide |