That would depend upon whether the greenhouse is in use, and whether it is being heated, and how. Greenhouses heated with propane will release CO2. Greenhouses not in use may emit various gases, depending upon the state of decomposition of any organic material contained within them.
In general, an unheated (or solar heated) greenhouse in use will tend to emit oxygen, via photosynthesis activity of the plants contained within it.
The global industrial waste and green house gases are not the problem, the issue is 75 percent
No one, they already exist on earth in structures such as coal, timber or oil, and it is released when burnt.
No, carbon monoxide is a pollutant and poisonous, but is not a green house gas.
nitrogen
yes they are increasing rapidly
The global industrial waste and green house gases are not the problem, the issue is 75 percent
Green house gases, such as carbon dioxide.
Green House gases work by allowing the Sun's rays into the atmosphere, but don't let them back out. Green-house gases are gases like CO2, Methane and other traces of elements. A small amount is necessary to control the warmth of the overall planet, but if we get to much green-house gas, the planet could begin to warm, which it is. If this is due to green-house gases or not, there is much controversy to the matter.
Ozone itself is a green house gas. There would be no way that green house gases would harm it.
yes, green house gases such as carbon dioxide, methane, nitrous oxide, and others are causes of global warming.
No one, they already exist on earth in structures such as coal, timber or oil, and it is released when burnt.
CFCs (chlorofluorocarbons) are man-made gases that are also greenhouse gases.
No, carbon monoxide is a pollutant and poisonous, but is not a green house gas.
nitrogen
african hunger
yes
No