Well, a city can't be 100% pollution free because pollution is already in the air but if the factorys cut down on there usage or found a more green way to make products also you can ride your bike or walk places
hope i helped
you mean that you need to keep the environment clean so you don't get infected.
We cannot make air pollution free. But we can reduce it by taking necessary steps. IF we want to make air pollution free our technology development should be curtailed but we can reduce it..
Las Palmas, Gran Canaria, Spain.
No. It would take energy (pollution) to make them. And also to charge them, assuming you went electric.
dont pollute it.
yes it is pollution free
cities
1.) Crowding in cities.2.) Higher pollution in cities.
a type of air pollution common around but not limited to cities. smog
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.
because it create less pollution.
of course the water pollution is more............Because big cities have lots of Industries.........these wastes were mixed in air or otherwise to water...........These leads to water pollution.............
The world is pollution free.