Just to examen my understanding for the sentence order

Temiz bir çevre için yerlere çöp atmamalıyız

Means,for a clean surroundings,we mustn't throw garbage to the places !

Doğru mu ?

And what places ?

Yep,you got the order right,there`s just a slight difference in the meaning of yerlere,yer-ground,so basically yerlere would mean on the grounds,but in English sounds better when it`s single.The same rule goes for havalar and weather (again plural in Turkish and single in English)

To keep the surroundings clear dont throw garbage on the ground!

ohh,anladım,

So it is single in English but at same time plural in Türkçe,
That's make sense

Tşk derya