WT is land pollution

問題話要 ENGLISH!

Land pollution is the degradation of the Earth's land surface through misuse of the soil by poor agricultural practices, mineral exploitation, industrial waste dumping, and indiscriminate disposal of urban wastes.
It includes visible waste and litter as well as pollution of the soil itself.

land pollution = 陸地污染

例如: 亂拋垃圾 等