Chemistry

Chemistry, 02.07.2019 15:00, williamabigan

How much carbon dioxide (co2). is in our atmosphere?

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Biology, 20.07.2019 06:30, lizdeleon248

Earth carbon dioxide is normally approximately 2% fraction of the air in the atmosphere. the reason carbon dioxide is considered a pollutant is a) carbon dioxide levels are much higher than ever before b) carbon dioxide absorbs infrared radiation, more co2 means more heat is trapped in the atmosphere. c) carbon dioxide breaks down the ozone layer. d) a & b

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Biology, 18.08.2019 04:10, honeysenpai6

Which statement best describes two paths carbon dioxide can take through the carbon cycle? carbon cycle ends when carbon dioxide is released when plants die and decompose. carbon dioxide in the atmosphere is carried through the ocean with precipitation and plants also use carbon dioxide in the atmosphere for photosynthesis. carbon dioxide travels through the atmosphere through photosynthesis and cellular respiration. plants use carbon dioxide to perform cellular respiration and release carbon dioxide as a by-product.

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Geography, 21.08.2019 03:20, jimissac68

Evolution of atmosphere when the earth was formed the sun radiated about 30% energy less than now, and its output goes only gradually up the climate models tell us that the earth would have been completely frozen for about first 2 billions years if it had an atmosphere similar to the current one. however we see evidence of liquid water that existed during that time therefore the early atmosphere must have had much more greenhouse gases, like carbon dioxide and methane that stopped the planet from freezing. (q1) name the molecule or element that is part of the present day atmosphere but would be missing from the original atmosphere of the earth: o carbon dioxide oxygen o methane nitrogen o water vapour o carbon monoxide (q2) which statement describes the geochemical carbon cycle an exchange of carbon between carbon monoxide in the earth and oceans and carbon dioxide in the atmosphere o an exchange of oxygen between carbon monoxide buried in carbonate rocks and carbon dioxide in the atmosphere. o an exchange of carbon between carbon dioxide in the atmosphere and carbon buried in the earth as carbonate rocks

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Geography, 04.10.2019 21:30, personm21

What percentage of the total carbon in the land, ocean, and atmosphere (excluding the sedimentary rocks) is in the atmosphere? 9. considering this answer, why is the level of carbon in the atmosphere considered so important? 10. scientists monitoring carbon dioxide in the atmosphere estimate that of the 7.1 gt of carbon dioxide released annually by human activities, approximately 3.2 gt remain there. another 2 gt diffuse into the ocean. how many gt of carbon are unaccounted for? what are some of the hypotheses to explain what happens to this missing carbon? 7

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