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In cities which have not taken steps to limit the problem - at the moment some of the Chinese cities have this problem.
25a. Air pollution normally increases along with population growth. This increasing pollution is a big problem for many cities. 25b. Air pollution normally increases along with population growth. This is a big problem for many cities. Which is a vague pronoun?
lichens are sensitive to sulfur dioxide, they are biological indicators. The cleaner the air the more lichens will grow. Therefore if there are houses right by a road, if you look on the roof there would be less lichens as there would be more sulfur dioxide in the air because of pollution. Hope this helps By Troy Flynn
Air pollution can be a problem in larger cities because of the existence of homes and factories in the same area. The government regulates how much pollution can be released into the air, so this problem is not as bad as it could be today.
Car pollution is a major problem in cities around the world. Large cities in China and India are suffering serious issues because of car pollution.
yes, they are a big country with big cities.
The pollution problem in India is especially bad in the cities and area where there are large industrial complexes. Essays on this problem should be written by the individual who was assigned to the task, not found online.
The cities are crowded so there are a lot of buildings and factories which cause pollution.
The UK has problems with acid rain and pollution in big cities. Climate change will cause most of London to flood. There is also water pollution problems.
In the late 1800s they did not have the sewage systems and waste disposal that we have today.
In the late 1800s they did not have the sewage systems and waste disposal that we have today.
Actually air pollution has been less of a problem than ever. The people who suffer worst from air pollution are people who burn biomass (wood, food waste, dung) inside without proper ventilation. In cities outdoor air pollution was a problem which was made worse by industrialization. In London smog was common and deadly smogs happened every decade or so. Air pollution in most US cities peaked in the 1950's and is far less of a problem than when the first Earth Day was held in 1971.