frozen water - ice, fresh water - water without salt , salt water - water with salt , pollution - harmful materials to thee ecosystem, brackish water  - mixture of fresh and salt water , salinity - how much salt is in the ocean, ground water - runoff that flows underground, watersheld - the land area that supplies water to a river system, turbidity - a measurement of how clear the water is , glacier - a large mass of moving ice and snow on land ,

Leaderboard

Estilo ng visual

Mga pagpipilian

Magpalit ng template

Ibalik ng awtomatikong pag-save: ?