In big cities,there is ..(4)..smoke from the vehicles.you can say,there is much air pollution.so,there ..(5).. very few stars in the sky there.there are a lot m

In big cities,there is ..(4)..smoke from the vehicles.you can say,there is much air pollution.so,there ..(5).. very few stars in the sky there.there are a lot more stars in small village