Cadium - a soft poisonous metal that is used in batteries and in the protective shields in nuclear reactors. It is a chemical element, Magnesium - a common silver-white metal that burns with a bright white flame. It is a chemical element, I class of purity - the cleanest waters, suitable directly for supplying the population with drinking water, living fish poorly resistant to pollution, II class of purity - water that is suitable for recreational purposes and for watering animals,, III class of purity - water suitable for irrigation of fields and industrial purposes that do not require drinking water quality, pesticide - a chemical substance used to kill insects and small animals that destroy crops, agricultural pollution - the top source of contamination in rivers and streams, sewage - the mixture of waste from the human body and used water, that is carried away from houses by pipes under the ground, pollution - the process of making air, water, soil etc dangerously dirty and not suitable for people to use, or the state of being dangerously dirty, radioactive waste - harmful radioactive substances that remain after energy has been produced in a nuclear reactor,
0%
Water pollution
共用
共用
共用
由
Justynagejdel
Klasa 4
顯示全部
編輯內容
嵌入
更多
排行榜
顯示更多
顯示更少
此排行榜當前是私有的。單擊
共用
使其公開。
資源擁有者已禁用此排行榜。
此排行榜被禁用,因為您的選項與資源擁有者不同。
還原選項
匹配遊戲
是一個開放式範本。它不會為排行榜生成分數。
需要登錄
視覺風格
字體
需要登錄
選項
切換範本
顯示所有
播放活動時將顯示更多格式。
恢復自動保存:
?