If there was less sympathy in the world,there would be less

If there was less sympathy in the world,there would be less there would be less trouble in the there would be less i hope there will be less pollution(较少的污染）in the world. if everyone cares about the environment,there will be less-- There will be less and less pollution in china in the future There will be less sad in the future. Will there be less pollution? Will there be less pollution 4.Every year,there are and (fewer/less)trees in the world. there will be less pollution if everyone protects our enviro there will be------（fewer,less）cars in the street in the fut