Сагс хоосон байна
Marine pollution
Marine pollution refers to the introduction of harmful substances, such as waste and chemicals, into the ocean, which harms marine life and human health.
Газар зүй
6 – 12-р анги
Бичсэн: Maradi Ádám Péter
Хянан шалгагч: Jóri Johanna
График дизайнер: Fasola Martin
Хөгжүүлэгч: Tóth Martin
Түлхүүр үгс
mozaLink
/Веб холбоос