Сагс хоосон байна
The fundamental ways of using the sea and its resources
The seas provide food, raw materials, and transportation opportunities, but their use can also cause environmental pollution.
Газар зүй
8 – 11-р анги
Бичсэн: Guba András
Хянан шалгагч: Jóri Johanna
График дизайнер: Fasola Martin
Хөгжүүлэгч: Tóth Martin
Түлхүүр үгс
mozaLink
/Веб холбоос