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Quad Cities Metropolitan Area's population is 381,342.
mostly in cities where there is a heavy traffic and less trees..
There are seven metropolitan cities in Tamil Nadu.
cancer, asma, carbon dioxide intoxication.
Generally, major cities and active volcanoes are the place where the most Carbon Dioxide is produced. However, I'm not sure of the exact location of where the absolute most is.
4 metropolitan cities
In cities, there are a lot of factories and companies that produce smoke after working on making their products, this smoke goes in to the atmosphere affecting the ozone layer wich protects us from the sun and increases the amount of carbon dioxide in the atmosphere after making holes in the layer.
The planet has a number of huge carbon sinks, removing CO2 from the atmosphere. The largest is the ocean, as CO2 dissolves. This absorbs roughly 80% of all carbon dioxide. Other sinks are photosynthesis by vegetation and phytoplankton, and the weathering of silicate rock. For more details, read about the carbon cycle. Currently, sources of carbon must outweigh the sinks because atmospheric CO2 is increasing globally by roughly 2 parts per million by volume per year, as can be seen in the NOAA measurements of atmospheric CO2. CO2 is even higher in cities and industrial areas, in places where fossil fuels are being burnt in quantity. The easiest way for us to reduce the carbon dioxide levels is to reduce carbon dioxide emissions. This is the scientific consensus view, and is the view held by the IPCC, all major scientific bodies and national academies of science around the world.
metropolitan areas
The air is polluted causing us to breath carbon dioxide and many different gases. None of this is healthy. We should try to keep the earth clean to reduce the amount of pollution realised into the air.
deforestation mean cutting the trees , cutting the trees means less oxygen and more carbon dioxide , more carbon dioxide means global worming , more global worming means more floods
Metropolitan cities are often overcrowded because of economic conditions. Since larger cities tend to have more than smaller ones, the also tend to draw more people to them and that is when they become overcrowded.